subject:(Heterogeneity)

1. Sasaki, Yuya. Essays in Econometrics of Heterogeneous Agents.

Degree: PhD, Economics, 2012, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:297618/

► Economic models often involve non-separability between observed and unobserved heterogeneous characteristics of economic agents. This dissertation presents methods of identification, estimation, and inference of nonparametric… (more)

Subjects/Keywords: heterogeneity

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APA (6^th Edition):

Sasaki, Y. (2012). Essays in Econometrics of Heterogeneous Agents. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:297618/

Chicago Manual of Style (16^th Edition):

Sasaki, Yuya. “Essays in Econometrics of Heterogeneous Agents.” 2012. Doctoral Dissertation, Brown University. Accessed February 25, 2020. https://repository.library.brown.edu/studio/item/bdr:297618/.

MLA Handbook (7^th Edition):

Sasaki, Yuya. “Essays in Econometrics of Heterogeneous Agents.” 2012. Web. 25 Feb 2020.

Vancouver:

Sasaki Y. Essays in Econometrics of Heterogeneous Agents. [Internet] [Doctoral dissertation]. Brown University; 2012. [cited 2020 Feb 25]. Available from: https://repository.library.brown.edu/studio/item/bdr:297618/.

Council of Science Editors:

Sasaki Y. Essays in Econometrics of Heterogeneous Agents. [Doctoral Dissertation]. Brown University; 2012. Available from: https://repository.library.brown.edu/studio/item/bdr:297618/

University of Manchester

2. Harkin, Lauren. Heterogeneity of Cell Fate Inducers.

Degree: 2013, University of Manchester

URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:189821

► Pattern formation of multicellular organisms in the absence of positional signals is thought to occur due to scattered cells within a population having different response… (more)

Subjects/Keywords: heterogeneity; gefe

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APA (6^th Edition):

Harkin, L. (2013). Heterogeneity of Cell Fate Inducers. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:189821

Chicago Manual of Style (16^th Edition):

Harkin, Lauren. “Heterogeneity of Cell Fate Inducers.” 2013. Doctoral Dissertation, University of Manchester. Accessed February 25, 2020. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:189821.

MLA Handbook (7^th Edition):

Harkin, Lauren. “Heterogeneity of Cell Fate Inducers.” 2013. Web. 25 Feb 2020.

Vancouver:

Harkin L. Heterogeneity of Cell Fate Inducers. [Internet] [Doctoral dissertation]. University of Manchester; 2013. [cited 2020 Feb 25]. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:189821.

Council of Science Editors:

Harkin L. Heterogeneity of Cell Fate Inducers. [Doctoral Dissertation]. University of Manchester; 2013. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:189821

Université de Neuchâtel

3. Mariéthoz, Grégoire. Geological stochastic imaging for aquifer characterization.

Degree: 2009, Université de Neuchâtel

URL: http://doc.rero.ch/record/12607

► Accurately modeling connectivity of geological structures is critical for flow and transport problems. Using multiple-points simulations is one of the most advanced tools to produce… (more)

▼ Accurately modeling connectivity of geological structures is critical for flow and transport problems. Using multiple-points simulations is one of the most advanced tools to produce realistic reservoir structures. It proceeds by considering data events (spatial arrangements of values) derived from a training image (TI). The usual method consists in storing all the data events of the TI in a database, which is used to compute conditional probabilities for the simulation. Instead, the Direct Sampling method (DS) proposed in this thesis consists in sampling directly the TI for a given data event. As soon as the data event in the TI matches the data event at the node to simulate, the value at its central node is directly pasted in the simulation. Because it accommodates data events of varying geometry, multi-grids are not needed. The method can deal with categorical and continuous variables and can be extended to multivariate cases. Therefore, it can handle new classes of problems. Different adaptations of the DS are proposed. The first one is aimed at reconstructing partially informed images or datasets. Instead of inferring data events from a TI, a training dataset is used. If the density of measurements is high enough, significant non-parametric spatial statistics can be derived from the data, and the patterns found in those data are mimicked without model inference. Therefore, minimum assumptions are made on the spatial structure of the reconstructed fields. Moreover, very limited parameterization is needed. The method gives good results for the reconstruction of complex 3D geometries from relatively small datasets. Another adaptation of the DS algorithm is aimed at performing super-resolution of coarse images. DS is used to stochastically simulate the structures at scales smaller than the measurement resolution. These structures are inferred using a hypothesis of scale-invariance on the spatial patterns found at the coarse scale. The approach is illustrated with examples of satellite imaging and digital photography. Parallelization is another important topic treated in this thesis. The size of simulation grids used for numerical models has increased by many orders of magnitude in the past years. Efficient pixel-based geostatistical simulation algorithms exist, but for very large grids and complex spatial models, computational burden remains heavy. As cluster computers become widely available, using parallel strategies is a natural step for increasing the usable grid size and the complexity of the models. These strategies must take profit of the possibilities offered by machines with a large number of processors. On such machines, the bottleneck is often the communication time between processors. This thesis presents a strategy distributing grid nodes among all available processors while minimizing communication and latency times. It consists in centralizing the simulation on a master processor that calls other slave processors as if they were functions simulating one node every time. The key is to decouple the… Advisors/Committee Members: Philippe (Dir.).

Subjects/Keywords: heterogeneity

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APA (6^th Edition):

Mariéthoz, G. (2009). Geological stochastic imaging for aquifer characterization. (Thesis). Université de Neuchâtel. Retrieved from http://doc.rero.ch/record/12607

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mariéthoz, Grégoire. “Geological stochastic imaging for aquifer characterization.” 2009. Thesis, Université de Neuchâtel. Accessed February 25, 2020. http://doc.rero.ch/record/12607.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mariéthoz, Grégoire. “Geological stochastic imaging for aquifer characterization.” 2009. Web. 25 Feb 2020.

Vancouver:

Mariéthoz G. Geological stochastic imaging for aquifer characterization. [Internet] [Thesis]. Université de Neuchâtel; 2009. [cited 2020 Feb 25]. Available from: http://doc.rero.ch/record/12607.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mariéthoz G. Geological stochastic imaging for aquifer characterization. [Thesis]. Université de Neuchâtel; 2009. Available from: http://doc.rero.ch/record/12607

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Queen Mary, University of London

4. Gudat, Nils-Holger. Essays on the economics of heterogeneity.

Degree: PhD, 2017, Queen Mary, University of London

URL: http://qmro.qmul.ac.uk/xmlui/handle/123456789/25849 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.765957

► The analysis of the effects of heterogeneity on aggregate economic outcomes has seen a resurgence in the recent macroeconomic literature. The exponential increase in computer… (more)

▼ The analysis of the effects of heterogeneity on aggregate economic outcomes has seen a resurgence in the recent macroeconomic literature. The exponential increase in computer power over the last decades has allowed researchers to solve ever more complex theoretical models with meaningful heterogeneity along various dimensions, while at the same time bringing ever more granular microlevel data to the table when testing the model predictions. This thesis explores two varieties of this recent vintage of models of heterogeneity. The first part of the thesis investigates the implications for wealth distributions of combining the standard lifecycle incomplete markets model of household consumption with income processes featuring heterogeneity in individual-specific growth rates, which households can learn about over the course of their working life. To this extent, first the recent literature on partial insurance and models of wealth inequality is reviewed. Then, income processes with profile heterogeneity are estimated from PSID and BHPS data. The results confirm the findings of previous studies that allowing for profile heterogeneity significantly lowers the estimated persistence and innovation variance of persistent shocks to household income, and documents substantial variation in the estimated parameters of the income process across time periods and measures of household income. The estimated income processes obtained are then used in a quantitative model of household consumption and saving in order to investigate the implications for the model predictions on the wealth distribution. The model is calibrated to empirical wealth distributions obtained from the SCF and the BHPS, and it is shown that the inclusion of individual-specific growth rate heterogeneity in income severely deteriorates the model's ability to fit the shape of the data. Comparative statics exercises are performed to identify the drivers in the model's failure to match the empirical profile of wealth holdings, which show that it is precisely the two key parameters which differ between the standard AR(1) model and the heterogeneous profile model, the persistence and variance of the permanent shock to household income, which drive model fit. The second part of the thesis looks at heterogeneity on the production side of the economy and its implications for international trade. Following an existing approach in the literature, we develop testable implications of the Melitz and Ottaviano (2008) model of trade, in which firms differ in their productivity and have to make production and exporting decisions in the face of costs to trade. Applying an estimation strategy previously used in the literature, we find weak support of the model's predictions in data for 64 manufacturing industries in the NAFTA member countries Canada, Mexico and USA. We then test additional model predictions by constructing a measure of entry conditions by industry based on firm turnover, which allows us to divide our sample into fixed and free entry industries. Furthermore, we…

Subjects/Keywords: Economics; Heterogeneity

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APA (6^th Edition):

Gudat, N. (2017). Essays on the economics of heterogeneity. (Doctoral Dissertation). Queen Mary, University of London. Retrieved from http://qmro.qmul.ac.uk/xmlui/handle/123456789/25849 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.765957

Chicago Manual of Style (16^th Edition):

Gudat, Nils-Holger. “Essays on the economics of heterogeneity.” 2017. Doctoral Dissertation, Queen Mary, University of London. Accessed February 25, 2020. http://qmro.qmul.ac.uk/xmlui/handle/123456789/25849 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.765957.

MLA Handbook (7^th Edition):

Gudat, Nils-Holger. “Essays on the economics of heterogeneity.” 2017. Web. 25 Feb 2020.

Vancouver:

Gudat N. Essays on the economics of heterogeneity. [Internet] [Doctoral dissertation]. Queen Mary, University of London; 2017. [cited 2020 Feb 25]. Available from: http://qmro.qmul.ac.uk/xmlui/handle/123456789/25849 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.765957.

Council of Science Editors:

Gudat N. Essays on the economics of heterogeneity. [Doctoral Dissertation]. Queen Mary, University of London; 2017. Available from: http://qmro.qmul.ac.uk/xmlui/handle/123456789/25849 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.765957

University of Utah

5. Solheim, Perry Warren. Heterogenity of fiscal year-end choice: exploring influences and effects by examining fiscal year-end changes.

Degree: PhD, Accounting;, 2010, University of Utah

URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/1958/rec/575

► In my dissertation I explore motivations and effects of the accounting choice of fiscal year-end (FYE). I demonstrate that the choice is neither static nor… (more)

Subjects/Keywords: Fiscal-year; Heterogeneity

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APA (6^th Edition):

Solheim, P. W. (2010). Heterogenity of fiscal year-end choice: exploring influences and effects by examining fiscal year-end changes. (Doctoral Dissertation). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/1958/rec/575

Chicago Manual of Style (16^th Edition):

Solheim, Perry Warren. “Heterogenity of fiscal year-end choice: exploring influences and effects by examining fiscal year-end changes.” 2010. Doctoral Dissertation, University of Utah. Accessed February 25, 2020. http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/1958/rec/575.

MLA Handbook (7^th Edition):

Solheim, Perry Warren. “Heterogenity of fiscal year-end choice: exploring influences and effects by examining fiscal year-end changes.” 2010. Web. 25 Feb 2020.

Vancouver:

Solheim PW. Heterogenity of fiscal year-end choice: exploring influences and effects by examining fiscal year-end changes. [Internet] [Doctoral dissertation]. University of Utah; 2010. [cited 2020 Feb 25]. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/1958/rec/575.

Council of Science Editors:

Solheim PW. Heterogenity of fiscal year-end choice: exploring influences and effects by examining fiscal year-end changes. [Doctoral Dissertation]. University of Utah; 2010. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/1958/rec/575

University of New Mexico

6. Engdahl, Nicholas. Heterogeneity effects on flow and transport within a shallow fluvial aquifer.

Degree: Department of Earth and Planetary Sciences, 2009, University of New Mexico

URL: http://hdl.handle.net/1928/9702

► The effects of aquifer heterogeneity on flow and transport are considered numerically at two scales using high resolution groundwater models. Heterogeneity effects on river loss… (more)

Subjects/Keywords: Heterogeneity; Groundwater modeling

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APA (6^th Edition):

Engdahl, N. (2009). Heterogeneity effects on flow and transport within a shallow fluvial aquifer. (Masters Thesis). University of New Mexico. Retrieved from http://hdl.handle.net/1928/9702

Chicago Manual of Style (16^th Edition):

Engdahl, Nicholas. “Heterogeneity effects on flow and transport within a shallow fluvial aquifer.” 2009. Masters Thesis, University of New Mexico. Accessed February 25, 2020. http://hdl.handle.net/1928/9702.

MLA Handbook (7^th Edition):

Engdahl, Nicholas. “Heterogeneity effects on flow and transport within a shallow fluvial aquifer.” 2009. Web. 25 Feb 2020.

Vancouver:

Engdahl N. Heterogeneity effects on flow and transport within a shallow fluvial aquifer. [Internet] [Masters thesis]. University of New Mexico; 2009. [cited 2020 Feb 25]. Available from: http://hdl.handle.net/1928/9702.

Council of Science Editors:

Engdahl N. Heterogeneity effects on flow and transport within a shallow fluvial aquifer. [Masters Thesis]. University of New Mexico; 2009. Available from: http://hdl.handle.net/1928/9702

University of Notre Dame

7. Janine Rand#252;egg. Biofilm responses to Pacific salmon (<i>Oncorhynchus</i> spp.) spawners: the role of environmental context and scale</h1>.

Degree: PhD, Biological Sciences, 2011, University of Notre Dame

URL: https://curate.nd.edu/show/ff365427r4s

► Pacific salmon (Oncorhynchus spp.) provide resource subsidies to stream and riparian ecosystems throughout much of the northern Pacific Rim. The dynamics of salmon runs… (more)

▼ Pacific salmon (Oncorhynchus spp.) provide resource subsidies to stream and riparian ecosystems throughout much of the northern Pacific Rim. The dynamics of salmon runs and environmental conditions of streams in which they spawn can vary in space and time, potentially creating or reinforcing heterogeneity in these recipient ecosystems. Enrichment of stream biota by salmon-derived nutrients and energy may be offset by spawner-mediated physical disturbance of sediments during migration and nest construction. These two contrasting roles of salmon are normally studied at reach scales but may vary at larger scales for enrichment and at smaller scales for salmon-induced physical disturbance. I studied the response of benthic biofilm (i.e., the complex of autotrophic and heterotrophic organisms growing on submerged surfaces) to the presence of salmon spawners in seven southeast Alaska streams. Autotrophs and heterotrophs were nutrient-limited by N or P (or both) in all study streams before the salmon run. During the salmon run, biofilm nutrient limitation was partially alleviated, but biofilm responses to salmon varied from net biomass accrual to net loss among streams and years. When data from multiple streams and years were considered, the 95% confidence interval of relative salmon enrichment was positive only for chlorophyll a (16-411% increase). The wide range of biofilm responses reflected, in part, variability among streams and years in environmental conditions, such as in temperature and nutrient concentrations. However, those environmental variables explained only a small amount of the overall biofilm variability, even if partitioned among spatial scales (e.g., stream, reach, riffle). The only consistent predictor across scales was sediment size, especially during the run, demonstrating the importance of salmon disturbance. High-frequency sampling revealed that effects attributed to salmon spawners may reflect other environmental variables that change during the salmon run, such as increased discharge later in the run. Salmon tissue decomposition and macroinvertebrate assemblages differed between terrestrial and aquatic habitats likely due to necrophagous guilds in terrestrial ecosystems. Integration of different spatial and temporal scales indicates that the ecological effects of salmon on recipient ecosystems are complex, and constrained by multiple environmental factors potentially operating at scales different from those of biotic responses. Advisors/Committee Members: Dominic T. Chaloner, Committee Member, Jason S. McLachlan, Committee Member, Jennifer L. Tank, Committee Member, Gary A. Lamberti, Committee Member, Alan D. Steinman, Committee Member.

Subjects/Keywords: periphyton; heterogeneity; epilithon

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APA (6^th Edition):

Rand#252;egg, J. (2011). Biofilm responses to Pacific salmon (<i>Oncorhynchus</i> spp.) spawners: the role of environmental context and scale</h1>. (Doctoral Dissertation). University of Notre Dame. Retrieved from https://curate.nd.edu/show/ff365427r4s

Chicago Manual of Style (16^th Edition):

Rand#252;egg, Janine. “Biofilm responses to Pacific salmon (<i>Oncorhynchus</i> spp.) spawners: the role of environmental context and scale</h1>.” 2011. Doctoral Dissertation, University of Notre Dame. Accessed February 25, 2020. https://curate.nd.edu/show/ff365427r4s.

MLA Handbook (7^th Edition):

Rand#252;egg, Janine. “Biofilm responses to Pacific salmon (<i>Oncorhynchus</i> spp.) spawners: the role of environmental context and scale</h1>.” 2011. Web. 25 Feb 2020.

Vancouver:

Rand#252;egg J. Biofilm responses to Pacific salmon (<i>Oncorhynchus</i> spp.) spawners: the role of environmental context and scale</h1>. [Internet] [Doctoral dissertation]. University of Notre Dame; 2011. [cited 2020 Feb 25]. Available from: https://curate.nd.edu/show/ff365427r4s.

Council of Science Editors:

Rand#252;egg J. Biofilm responses to Pacific salmon (<i>Oncorhynchus</i> spp.) spawners: the role of environmental context and scale</h1>. [Doctoral Dissertation]. University of Notre Dame; 2011. Available from: https://curate.nd.edu/show/ff365427r4s

Universiteit Utrecht

8. Mooijman, D. Translation specificity and ribosomal heterogeneity.

Degree: 2012, Universiteit Utrecht

URL: http://dspace.library.uu.nl:8080/handle/1874/240777

► Control of gene expression is essential for cellular processes to proceed correctly as disturbances in both RNA and protein lev- els have shown to be… (more)

Subjects/Keywords: Translation; heterogeneity; development

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APA (6^th Edition):

Mooijman, D. (2012). Translation specificity and ribosomal heterogeneity. (Masters Thesis). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/240777

Chicago Manual of Style (16^th Edition):

Mooijman, D. “Translation specificity and ribosomal heterogeneity.” 2012. Masters Thesis, Universiteit Utrecht. Accessed February 25, 2020. http://dspace.library.uu.nl:8080/handle/1874/240777.

MLA Handbook (7^th Edition):

Mooijman, D. “Translation specificity and ribosomal heterogeneity.” 2012. Web. 25 Feb 2020.

Vancouver:

Mooijman D. Translation specificity and ribosomal heterogeneity. [Internet] [Masters thesis]. Universiteit Utrecht; 2012. [cited 2020 Feb 25]. Available from: http://dspace.library.uu.nl:8080/handle/1874/240777.

Council of Science Editors:

Mooijman D. Translation specificity and ribosomal heterogeneity. [Masters Thesis]. Universiteit Utrecht; 2012. Available from: http://dspace.library.uu.nl:8080/handle/1874/240777

Carnegie Mellon University

9. Lai, Han. Phylogenetic Reconciliation with Transfers.

Degree: 2017, Carnegie Mellon University

URL: http://repository.cmu.edu/dissertations/1019

► Correctly inferring the events in the history of a gene family is crucial to relating gene evolution to ecological adaptation, understanding the evolution of gene… (more)

▼ Correctly inferring the events in the history of a gene family is crucial to relating gene evolution to ecological adaptation, understanding the evolution of gene function, and inferring homology relationships. Information about the evolution of a gene family can be obtained from the incongruence between a gene tree and the associated species tree. Phylogenetic reconciliation algorithms infer gene events through a formal comparison of the gene and species trees. In this thesis, I expand the reconciliation framework to capture more complex evolutionary scenarios. Current reconciliation algorithms are capable of inferring duplication, transfer, and loss events when both the gene tree and the species tree are well resolved. They are not, however, well equipped to infer events with non-binary trees. A non-binary species tree indicates that evolutionary forces are also in play on the population level. A nonbinary gene tree reflects uncertainty in the gene tree branching order, due to insufficient information from the sequence data. Reconciliation algorithms that do not account for these processes can result in incorrect inference of events. To address these problems, I first introduce an algorithm that reconciles a binary gene tree with a non-binary species tree while accounting for gene tree incongruence that could result from population processes rather than gene events. Second, I present an exact algorithm and several fast heuristics that use reconciliation to resolve uncertainty in a non-binary gene tree. In a parsimony optimization framework, reconciliation seeks the solution that minimizes the weighted sum of the inferred events. One major challenge of this approach is how to select event weights that will infer the correct event history. First, I tackle this challenge from a probabilistic perspective by considering how the underlying gene event rates influence the best choice of event weights. Second, I use a topological approach to identify common tradeoffs between histories with transfers and histories with duplications and losses. By making these tradeoffs explicit, my approach provides a framework for applying biological intuition to the problem of weight selection. This significantly improves the researcher's understanding of how different weights will affect the reconciliation result, leading to better estimation of gene events. I have implemented the algorithms described above in Notung, a publically available and widely used reconciliation software package. Using this software, I demonstrate the applicability of my theoretical work to concrete biological problems via a phylogenomic analysis in Cyanobacteria. The results reveal a link between gain and loss of photosynthesis genes and niche adaptation.

Subjects/Keywords: phylogenetics; reconciliation; heterogeneity

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APA (6^th Edition):

Lai, H. (2017). Phylogenetic Reconciliation with Transfers. (Thesis). Carnegie Mellon University. Retrieved from http://repository.cmu.edu/dissertations/1019

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lai, Han. “Phylogenetic Reconciliation with Transfers.” 2017. Thesis, Carnegie Mellon University. Accessed February 25, 2020. http://repository.cmu.edu/dissertations/1019.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lai, Han. “Phylogenetic Reconciliation with Transfers.” 2017. Web. 25 Feb 2020.

Vancouver:

Lai H. Phylogenetic Reconciliation with Transfers. [Internet] [Thesis]. Carnegie Mellon University; 2017. [cited 2020 Feb 25]. Available from: http://repository.cmu.edu/dissertations/1019.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lai H. Phylogenetic Reconciliation with Transfers. [Thesis]. Carnegie Mellon University; 2017. Available from: http://repository.cmu.edu/dissertations/1019

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Boston College

10. Dmitriev, Mikhail. Essays in International Macroeconomics.

Degree: PhD, Economics, 2014, Boston College

URL: http://dlib.bc.edu/islandora/object/bc-ir:103536

► My dissertation develops a set of tools for thinking about heterogeneity in economic models in an analytically tractable way. Many models use the representative agent… (more)

Subjects/Keywords: Heterogeneity; Economic models

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APA (6^th Edition):

Dmitriev, M. (2014). Essays in International Macroeconomics. (Doctoral Dissertation). Boston College. Retrieved from http://dlib.bc.edu/islandora/object/bc-ir:103536

Chicago Manual of Style (16^th Edition):

Dmitriev, Mikhail. “Essays in International Macroeconomics.” 2014. Doctoral Dissertation, Boston College. Accessed February 25, 2020. http://dlib.bc.edu/islandora/object/bc-ir:103536.

MLA Handbook (7^th Edition):

Dmitriev, Mikhail. “Essays in International Macroeconomics.” 2014. Web. 25 Feb 2020.

Vancouver:

Dmitriev M. Essays in International Macroeconomics. [Internet] [Doctoral dissertation]. Boston College; 2014. [cited 2020 Feb 25]. Available from: http://dlib.bc.edu/islandora/object/bc-ir:103536.

Council of Science Editors:

Dmitriev M. Essays in International Macroeconomics. [Doctoral Dissertation]. Boston College; 2014. Available from: http://dlib.bc.edu/islandora/object/bc-ir:103536

Vanderbilt University

11. Bailey, Roger Allen. Essays on the Interaction of Product Characteristics, Consumer Heterogeneity, and Information.

Degree: PhD, Economics, 2013, Vanderbilt University

URL: http://etd.library.vanderbilt.edu//available/etd-08212013-161041/ ;

► This dissertation addresses three related questions. The second chapter models a monopolist with private information about her product, over which consumers have heterogeneous preferences. Consumers… (more)

▼ This dissertation addresses three related questions. The second chapter models a monopolist with private information about her product, over which consumers have heterogeneous preferences. Consumers may incur an audit cost to acquire this information before purchase, and the monopolist may signal this information via price. Equilibrium analysis yields two surviving equilibria: a separating equilibrium with price signaling and a pooling equilibrium with consumer audit. Welfare analysis reveals that either equilibrium may be preferable, depending on the value of the model's parameters. The third chapter assess whether or not a proxy variable for individual consumers' concern for their health is valuable in the estimation of demand for products in which a brand's ``healthiness' may be of concern to consumers. A random-coefficients logit model is applied to scanner data across 28 U.S. cities, together with demographic data from the Current Population Survey (CPS) and the Behavioral Risk Factor Surveillance System (BRFSS), to estimate the coefficients of the interaction between health-related product characteristics and a proxy variable for health conscientiousness in the estimation of demand for ready-to-eat cereal. The results suggest that the interaction of tobacco use, as a proxy for a consumer health conscientiousness, may be a worthwhile addition to the commonly collected demographic information used in the estimation of demand. The final chapter addresses the problem of estimating the multiple sets of preferences that underlie the purchasing behavior of a household, and doing so in such a way as to retrieve actionable household-level information about preferences. A hierarchical Bayesian finite mixture model is proposed as a solution, wherein the individual purchases of each household are the result of one of finitely many underlying distributions for preferences. Results applying the model to simulated household panel datasets demonstrate the ability of the model to converge to the true underlying parameters of such data. Advisors/Committee Members: Jeff Dotson (committee member), Tong Li (committee member), Jennifer Reinganum (chair), Andrew Daughety (chair).

Subjects/Keywords: consumer information; heterogeneity

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APA (6^th Edition):

Bailey, R. A. (2013). Essays on the Interaction of Product Characteristics, Consumer Heterogeneity, and Information. (Doctoral Dissertation). Vanderbilt University. Retrieved from http://etd.library.vanderbilt.edu//available/etd-08212013-161041/ ;

Chicago Manual of Style (16^th Edition):

Bailey, Roger Allen. “Essays on the Interaction of Product Characteristics, Consumer Heterogeneity, and Information.” 2013. Doctoral Dissertation, Vanderbilt University. Accessed February 25, 2020. http://etd.library.vanderbilt.edu//available/etd-08212013-161041/ ;.

MLA Handbook (7^th Edition):

Bailey, Roger Allen. “Essays on the Interaction of Product Characteristics, Consumer Heterogeneity, and Information.” 2013. Web. 25 Feb 2020.

Vancouver:

Bailey RA. Essays on the Interaction of Product Characteristics, Consumer Heterogeneity, and Information. [Internet] [Doctoral dissertation]. Vanderbilt University; 2013. [cited 2020 Feb 25]. Available from: http://etd.library.vanderbilt.edu//available/etd-08212013-161041/ ;.

Council of Science Editors:

Bailey RA. Essays on the Interaction of Product Characteristics, Consumer Heterogeneity, and Information. [Doctoral Dissertation]. Vanderbilt University; 2013. Available from: http://etd.library.vanderbilt.edu//available/etd-08212013-161041/ ;

Queens University

12. Chernoff, Alexander. Essays on Firm Heterogeneity with Empirical Applications in Economic History and Agricultural Economics .

Degree: Economics, 2016, Queens University

URL: http://hdl.handle.net/1974/14446

► This thesis uses models of firm-heterogeneity to complete empirical analyses in economic history and agricultural economics. In Chapter 2, a theoretical model of firm heterogeneity… (more)

Subjects/Keywords: Firm Heterogeneity; Productivity

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Chernoff, A. (2016). Essays on Firm Heterogeneity with Empirical Applications in Economic History and Agricultural Economics . (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/14446

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chernoff, Alexander. “Essays on Firm Heterogeneity with Empirical Applications in Economic History and Agricultural Economics .” 2016. Thesis, Queens University. Accessed February 25, 2020. http://hdl.handle.net/1974/14446.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chernoff, Alexander. “Essays on Firm Heterogeneity with Empirical Applications in Economic History and Agricultural Economics .” 2016. Web. 25 Feb 2020.

Vancouver:

Chernoff A. Essays on Firm Heterogeneity with Empirical Applications in Economic History and Agricultural Economics . [Internet] [Thesis]. Queens University; 2016. [cited 2020 Feb 25]. Available from: http://hdl.handle.net/1974/14446.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chernoff A. Essays on Firm Heterogeneity with Empirical Applications in Economic History and Agricultural Economics . [Thesis]. Queens University; 2016. Available from: http://hdl.handle.net/1974/14446

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Alberta

13. Maruta, Admasu A. Heterogeneity in Attitudes Underlying Preferences for Genomic Technology Producing Hybrid Poplars on Public Land.

Degree: MS, Department of Resource Economics and Environmental Sociology, 2016, University of Alberta

URL: https://era.library.ualberta.ca/files/c6682x413m

► This study investigates the public preference heterogeneity of planting genetically improved poplar tree on public land for biofuel production in Western Canada. Using a sample… (more)

Subjects/Keywords: Preference; Heterogeneity; Cluster Analysis

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APA (6^th Edition):

Maruta, A. A. (2016). Heterogeneity in Attitudes Underlying Preferences for Genomic Technology Producing Hybrid Poplars on Public Land. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/c6682x413m

Chicago Manual of Style (16^th Edition):

Maruta, Admasu A. “Heterogeneity in Attitudes Underlying Preferences for Genomic Technology Producing Hybrid Poplars on Public Land.” 2016. Masters Thesis, University of Alberta. Accessed February 25, 2020. https://era.library.ualberta.ca/files/c6682x413m.

MLA Handbook (7^th Edition):

Maruta, Admasu A. “Heterogeneity in Attitudes Underlying Preferences for Genomic Technology Producing Hybrid Poplars on Public Land.” 2016. Web. 25 Feb 2020.

Vancouver:

Maruta AA. Heterogeneity in Attitudes Underlying Preferences for Genomic Technology Producing Hybrid Poplars on Public Land. [Internet] [Masters thesis]. University of Alberta; 2016. [cited 2020 Feb 25]. Available from: https://era.library.ualberta.ca/files/c6682x413m.

Council of Science Editors:

Maruta AA. Heterogeneity in Attitudes Underlying Preferences for Genomic Technology Producing Hybrid Poplars on Public Land. [Masters Thesis]. University of Alberta; 2016. Available from: https://era.library.ualberta.ca/files/c6682x413m

University of Pretoria

14. De Beer, Yolandi-Mari. Determinants and consequences of elephant spatial use in Southern Africa’s arid savannas.

Degree: Zoology and Entomology, 2008, University of Pretoria

URL: http://hdl.handle.net/2263/27195

► Resources that can optimize survival are distributed unevenly across landscapes. I assumed that the distribution of these resources is reflected by landscape heterogeneity and that… (more)

▼ Resources that can optimize survival are distributed unevenly across landscapes. I assumed that the distribution of these resources is reflected by landscape heterogeneity and that selection for areas with relatively high heterogeneity reflects on selection for resources. I therefore hypothesized that landscape heterogeneity determines variability in elephant home range location and size. I evaluated home range sizes for elephants living in the Etosha National Park (n = 6), Khaudum Game Reserve (n = 6) and Ngamiland District 11 (n = 4) during two wet and two dry seasons. I used raster grid landscape maps, which were based on structural classes, to superimpose elephant home ranges and to generate randomly located ranges. I then used the FRAGSTATS programme to calculate five landscape metrics that measure aspects of heterogeneity within elephant and randomly located ranges. I compared landscape heterogeneity of the three study areas using the landscape metrics calculated for the randomly located ranges. Assuming that higher values of Patch density, Lanscape shape index and Shannon diversity index, and lower values of Largest patch index and Contagion implies selection for heterogeneity, I qualitatively compared the distribution and the mean of the landscape metric values for the elephant home ranges with those for the randomly located ranges. The influence of season on selection for the landscape metrics was also evaluated. I searched for relationships between home range size and landscape metrics for the three study areas and searched for a possible relationship between home range size and water point density for elephants in Etosha and Khaudum. Khaudum was consistently more heterogeneous than Etosha and NG11, while the latter was the least heterogeneous. Within these study areas, at least some of the landscape metrics may explain the location of elephant home ranges. The consistent apparent selection for areas with relatively higher values of Landscape shape index and Shannon diversity index and lower values of Largest patch index and Contagion across both wet and/or dry seasons by elephants in Etosha and NG11 suggests that landscape heterogeneity can explain landscape selection by elephants. This did not hold for elephants in Khaudum where elephants inconsistently selected for Largest patch index and Landscape shape index. This study further suggested that landscape heterogeneity did not determine home range size. However, water was a strong determinant of home range size and may therefore explain the lack of selection for heterogeneity in Khaudum. Heterogeneity is an inherent characteristic of landscapes and seems to reflect on the availability of resources that may subsequently influence the way elephants use space. My study supported the concept that increasing space, while promoting heterogeneity for elephants may enhance range expansion. The management of elephants should therefore be directed at optimising the availability of heterogeneous landscapes when setting land aside for their conservation. Management… Advisors/Committee Members: Prof R J van Aarde (advisor).

Subjects/Keywords: Khaudum; Landscape heterogeneity; Etosha; UCTD

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Beer, Yolandi-Mari, D. (2008). Determinants and consequences of elephant spatial use in Southern Africa’s arid savannas. (Masters Thesis). University of Pretoria. Retrieved from http://hdl.handle.net/2263/27195

Chicago Manual of Style (16^th Edition):

Beer, Yolandi-Mari, De. “Determinants and consequences of elephant spatial use in Southern Africa’s arid savannas.” 2008. Masters Thesis, University of Pretoria. Accessed February 25, 2020. http://hdl.handle.net/2263/27195.

MLA Handbook (7^th Edition):

Beer, Yolandi-Mari, De. “Determinants and consequences of elephant spatial use in Southern Africa’s arid savannas.” 2008. Web. 25 Feb 2020.

Vancouver:

Beer, Yolandi-Mari D. Determinants and consequences of elephant spatial use in Southern Africa’s arid savannas. [Internet] [Masters thesis]. University of Pretoria; 2008. [cited 2020 Feb 25]. Available from: http://hdl.handle.net/2263/27195.

Council of Science Editors:

Beer, Yolandi-Mari D. Determinants and consequences of elephant spatial use in Southern Africa’s arid savannas. [Masters Thesis]. University of Pretoria; 2008. Available from: http://hdl.handle.net/2263/27195

Texas A&M University

15. Son, Jungrak. Numerical Simulation of Seismic Wave Propagation in the Presence of Complex Near-Surface Heterogeneity Including Surface Topography.

Degree: 2015, Texas A&M University

URL: http://hdl.handle.net/1969.1/155570

► Surface wave analysis and inversion have been developed to improve P-wave imaging for hydrocarbon reservoirs in land environments. This requires elastic wave modeling validation based… (more)

▼ Surface wave analysis and inversion have been developed to improve P-wave imaging for hydrocarbon reservoirs in land environments. This requires elastic wave modeling validation based on an accurate near-surface geology model. However, conventional modeling approaches with uniform grids pose significant challenges to represent complex geometry of near-surface heterogeneities and irregular surface topography. To solve this issue, numerical simulation of elastic wave propagation is implemented based on the spectral-element method, which is ideal for applying flexible unstructured grids. Locally-refined hybrid grids are used to describe the complex boundaries of subsurface structures, and refined grids are effective to reduce computational costs. Three representative examples of geological features as near-surface heterogeneities are analyzed in seismic modeling with synthetic earth models. The structures are a shallow small scatterer, a collapsed karst structure and a low-velocity top layer with surface topography. The earth model geometry and material properties are based on the data from the recently released SEAM 2 project ?arid model.? The resulting seismograms show that scattered surface waves from the shallow velocity anomalies are affected by the shape of modeling grids, properties of filling materials, attenuation, and curved surface topography. Specifically, the shallow scatterer, which is filled with low-velocity materials, shows a significant amount of trapped seismic energy and generates multiple scattered surface waves. These unwanted waves from trapped energy are strongly based on the surface topography and attenuation factor, Q. Since scattered surface waves are sensitively affected by various geological features and modeling factors, advanced seismic forward modeling approaches should be used for the accurate near-surface modeling. This study shows the capability and potential of the spectral-element method with advanced conforming grids to handle high impedance contrast boundaries for the analysis of interaction between the seismic wave scattering and complex heterogeneous shallow media. It will lead to improve distinguishing of seismic noise caused by shallow anomalies from the valuable signals associated with hydrocarbon reservoirs. Advisors/Committee Members: Gibson, Richard (advisor), Duan, Benchun (advisor), Efendiev, Yalchin (committee member).

Subjects/Keywords: elastic wave; heterogeneity; topography

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APA (6^th Edition):

Son, J. (2015). Numerical Simulation of Seismic Wave Propagation in the Presence of Complex Near-Surface Heterogeneity Including Surface Topography. (Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/155570

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Son, Jungrak. “Numerical Simulation of Seismic Wave Propagation in the Presence of Complex Near-Surface Heterogeneity Including Surface Topography.” 2015. Thesis, Texas A&M University. Accessed February 25, 2020. http://hdl.handle.net/1969.1/155570.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Son, Jungrak. “Numerical Simulation of Seismic Wave Propagation in the Presence of Complex Near-Surface Heterogeneity Including Surface Topography.” 2015. Web. 25 Feb 2020.

Vancouver:

Son J. Numerical Simulation of Seismic Wave Propagation in the Presence of Complex Near-Surface Heterogeneity Including Surface Topography. [Internet] [Thesis]. Texas A&M University; 2015. [cited 2020 Feb 25]. Available from: http://hdl.handle.net/1969.1/155570.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Son J. Numerical Simulation of Seismic Wave Propagation in the Presence of Complex Near-Surface Heterogeneity Including Surface Topography. [Thesis]. Texas A&M University; 2015. Available from: http://hdl.handle.net/1969.1/155570

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Victoria University of Wellington

16. McDowall, Christopher. A fish for all seasons: Spatial and temporal variation in patterns of demographic heterogeneity for Retropinna retropinna.

Degree: 2016, Victoria University of Wellington

URL: http://hdl.handle.net/10063/6250

► Demographic heterogeneity can have big effects on population dynamics, but for most species we have limited understanding of how and why individuals vary. Variation among… (more)

▼ Demographic heterogeneity can have big effects on population dynamics, but for most species we have limited understanding of how and why individuals vary. Variation among individuals is of particular importance for stage-structured populations, and/or where species have ‘complex life-cycles’. This is especially relevant in the case of amphidromous fishes that typically spawn in river mouths and estuaries, develop at sea and return to freshwater to finish development. These fish face strong selection pressures as they negotiate challenges around dispersal and development in order to reproduce successfully. Quantifying variation amongst individual fish can improve understanding of their population dynamics and suggest possible drivers of variation. I evaluate patterns and sources of variation in demographic attributes of the New Zealand smelt (Retropinna retropinna). R. retropinna is an amphidromous fish that is endemic to New Zealand. While most populations have a sea-going larval stage, a number of landlocked freshwater populations occur, with the largest landlocked population residing in Lake Taupo. Here R. retropinna are presented with a variety of littoral feeding/spawning habitats and environmental conditions that may vary across distinct regions of the lake. In addition, the protracted spawning period for this species in Lake Taupo (occurring over eight months of the year) provides additional scope for seasonal variation to influence demographic attributes of individuals. I sampled R. retropinna from discrete coastal habitats (beach or river) that were located in the eastern, southern and western regions of the lake. I evaluated patterns of variation in the size-structure, age-structure and morphology of R. retropinna among habitats and/or regions across Lake Taupo. I used otoliths to reconstruct demographic histories (ages, growth rates, hatch dates) of individuals, and used a set of statistical models to infer spatial variation in demographic histories. I found differences in size and age structure between regions, and a temporal effect of hatch date on larval/juvenile growth rates. In addition, I obtained samples of R. retropinna from a sea-going population at the Hutt river mouth (sampled fish were presumed to be migrating upstream after their development period in Wellington Harbour and/or adjacent coastal environments). While Lake Taupo is large, deep, fresh, oligotrophic and strongly stratified for 8-9 months outside of winter, Wellington Harbour is less than a sixth of the area, shallow, saline, eutrophic and never stratified. These greatly differing environmental conditions led me to expect that these systems’ R. retropinna populations would carry significantly different demographic attributes. I compared the hatching phenology, recruitment age, body morphology, and individual growth histories (reconstructed from otoliths) of R. retropinna sampled from Lake Taupo and Wellington Harbour. I explored the relationships between demographic variation and environmental variation (water temperature,… Advisors/Committee Members: Shima, Jeffrey.

Subjects/Keywords: Demographic heterogeneity; Otolith; Amphidromy

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

McDowall, C. (2016). A fish for all seasons: Spatial and temporal variation in patterns of demographic heterogeneity for Retropinna retropinna. (Masters Thesis). Victoria University of Wellington. Retrieved from http://hdl.handle.net/10063/6250

Chicago Manual of Style (16^th Edition):

McDowall, Christopher. “A fish for all seasons: Spatial and temporal variation in patterns of demographic heterogeneity for Retropinna retropinna.” 2016. Masters Thesis, Victoria University of Wellington. Accessed February 25, 2020. http://hdl.handle.net/10063/6250.

MLA Handbook (7^th Edition):

McDowall, Christopher. “A fish for all seasons: Spatial and temporal variation in patterns of demographic heterogeneity for Retropinna retropinna.” 2016. Web. 25 Feb 2020.

Vancouver:

McDowall C. A fish for all seasons: Spatial and temporal variation in patterns of demographic heterogeneity for Retropinna retropinna. [Internet] [Masters thesis]. Victoria University of Wellington; 2016. [cited 2020 Feb 25]. Available from: http://hdl.handle.net/10063/6250.

Council of Science Editors:

McDowall C. A fish for all seasons: Spatial and temporal variation in patterns of demographic heterogeneity for Retropinna retropinna. [Masters Thesis]. Victoria University of Wellington; 2016. Available from: http://hdl.handle.net/10063/6250

University of Minnesota

17. Wiczer, David Geoffrey. Essays in macro and labor economics.

Degree: PhD, Economics, 2013, University of Minnesota

URL: http://purl.umn.edu/156383

► The first chapter studies the rate of long-term unemployment, which spiked during the Great Recession. To help explain this, I exploit the systematic and counter-cyclical… (more)

▼ The first chapter studies the rate of long-term unemployment, which spiked during the Great Recession. To help explain this, I exploit the systematic and counter-cyclical differences in unemployment duration across occupations. This heterogeneity extends the tail of the unemployment duration distribution, which is necessary to account for the observed level of long-term unemployment and its increase since 2007. This chapter introduces a model in which unemployment duration and occupation are linked; it measures the effects of occupation-specific shocks and skills on unemployment duration. Here, a worker will be paid more for human capital in his old occupation but a bad shock may make those jobs scarce. Still, their human capital partly ``attaches'' them to their prior occupation, even when searching there implies a longer expected duration. Hence, unemployment duration rises and becomes more dispersed across occupations. Redistributive shocks and business cycles, as in the Great Recession, exacerbate this effect. For quantitative discipline, the model matches data on the wage premium to occupational experience and the co-movement of occupations' productivity. The distribution of duration is then endogenous. For comparison's sake, if a standard model with homogeneous job seekers matches the job finding rate, then it also determines expected duration and understates it. That standard model implies just over half of the long-term unemployment in 1976-2007 and almost no rise in the recent recession. But, with heterogeneity by occupation, this chapter nearly matches long-term unemployment in the period 1976-2007 and 70% of its rise during the Great Recession. The second chapter studies the link between wage growth and the match of a worker's occupation and skills. The notion here is that if human capital accumulation depends on match quality, poor matches can have long-lasting effects on lifetime earnings. I build a model that incorporates such a mechanism, in which human capital accumulation is affected by imperfect information about one's self. This informational friction leads to matches in which a worker accumulates human capital more slowly and has weaker earnings growth. To get direct evidence, the chapter pieces together two sets of data on the skills used by an occupation and the skills a worker is particularly good at. Data on occupations describes occupations by the intensity with which they use many dimensions of workers' knowledge, skills and abilities. To pair, we have data on tests taken by respondents in a panel that tracks occupations and earnings. The test designers created a mapping between their tests and the occupational descriptors, which allows us to create two measures. The first measure of match quality is just the dot product between the dimensions of workers' skills and utilization rate of these skills by occupations. The second measure mismatch relative to an optimal matching computed using the Gale-Shapley algorithm for stable pairs. In both, worse matches have significantly slower…

Subjects/Keywords: Duration; Heterogeneity; Occupation; Unemployment; Wages

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wiczer, D. G. (2013). Essays in macro and labor economics. (Doctoral Dissertation). University of Minnesota. Retrieved from http://purl.umn.edu/156383

Chicago Manual of Style (16^th Edition):

Wiczer, David Geoffrey. “Essays in macro and labor economics.” 2013. Doctoral Dissertation, University of Minnesota. Accessed February 25, 2020. http://purl.umn.edu/156383.

MLA Handbook (7^th Edition):

Wiczer, David Geoffrey. “Essays in macro and labor economics.” 2013. Web. 25 Feb 2020.

Vancouver:

Wiczer DG. Essays in macro and labor economics. [Internet] [Doctoral dissertation]. University of Minnesota; 2013. [cited 2020 Feb 25]. Available from: http://purl.umn.edu/156383.

Council of Science Editors:

Wiczer DG. Essays in macro and labor economics. [Doctoral Dissertation]. University of Minnesota; 2013. Available from: http://purl.umn.edu/156383

University of Minnesota

18. Nedveck, Derek. Effect of variation in nitrogen environment and legume and rhizobia genetics on the outcome of the legume-rhizobium mutualism.

Degree: MS, Plant Biological Sciences, 2017, University of Minnesota

URL: http://hdl.handle.net/11299/191249

► The legume-rhizobium mutualism has been studied for its agricultural importance from the nitrogen that the rhizobia fix in exchange for carbon from the plant, and… (more)

Subjects/Keywords: environmental heterogeneity; legume; rhizobium

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Nedveck, D. (2017). Effect of variation in nitrogen environment and legume and rhizobia genetics on the outcome of the legume-rhizobium mutualism. (Masters Thesis). University of Minnesota. Retrieved from http://hdl.handle.net/11299/191249

Chicago Manual of Style (16^th Edition):

Nedveck, Derek. “Effect of variation in nitrogen environment and legume and rhizobia genetics on the outcome of the legume-rhizobium mutualism.” 2017. Masters Thesis, University of Minnesota. Accessed February 25, 2020. http://hdl.handle.net/11299/191249.

MLA Handbook (7^th Edition):

Nedveck, Derek. “Effect of variation in nitrogen environment and legume and rhizobia genetics on the outcome of the legume-rhizobium mutualism.” 2017. Web. 25 Feb 2020.

Vancouver:

Nedveck D. Effect of variation in nitrogen environment and legume and rhizobia genetics on the outcome of the legume-rhizobium mutualism. [Internet] [Masters thesis]. University of Minnesota; 2017. [cited 2020 Feb 25]. Available from: http://hdl.handle.net/11299/191249.

Council of Science Editors:

Nedveck D. Effect of variation in nitrogen environment and legume and rhizobia genetics on the outcome of the legume-rhizobium mutualism. [Masters Thesis]. University of Minnesota; 2017. Available from: http://hdl.handle.net/11299/191249

University of Illinois – Urbana-Champaign

19. Gu, Jiaying. Unobserved heterogeneity in economic models: testing and estimation.

Degree: PhD, Economics, 2015, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/88183

► This dissertation consists three chapters with a central theme on unobserved heterogeneity in economic models. The first two chapters discuss tests for parameter homogeneity against… (more)

▼ This dissertation consists three chapters with a central theme on unobserved heterogeneity in economic models. The first two chapters discuss tests for parameter homogeneity against general alternatives. In the first chapter, I propose a unified framework for score tests of parameter homogeneity based on Neyman's C(α) approach. Such tests are irregular in the sense that the first order derivative of the log likelihood with respect to the heterogeneity parameter is identically zero, and consequently the conventional Fisher information about the parameter is zero. Nevertheless, local asymptotic optimality of the C(α) tests can be established via LeCam's differentiability in quadratic mean and the limit experiment approach. The new framework reveals that certain regularity conditions commonly employed in earlier developments are unnecessary, i.e. the symmetry or third moment condition imposed on the heterogeneity distribution. Additionally, the limit experiment for the multi-dimensional case suggests modifications on existing tests for slope heterogeneity in cross sectional and panel data models that lead to power improvement. The second chapter focuses on the likelihood ratio test for the same class of testing problems. The test statistic is based on estimation of general (nonparametric) mixture models using the Kiefer and Wolfowitz (1956) maximum likelihood method. Recent developments in convex optimization are shown to dramatically improve upon earlier EM methods for computation of these estimators, and new results on the large sample behavior of likelihood ratios involving such estimators yield a tractable form of asymptotic inference. The computation efficiency also allows the use of a bootstrap method to determine critical values that are shown to work better than the asymptotic critical values in finite samples and consistency of the bootstrap procedure is formally proved. We compare performance of the likelihood ratio test with that of the C(α) test proposed in the first chapter and identify circumstances in which each is preferred. The last chapter discusses estimation method for models with unobserved heterogeneity. In particular, the empirical Bayes methods for Gaussian compound decision problems involving longitudinal data are considered. The methods are first illustrated with some simulation examples and then with an application to models of income dynamics. Using PSID data we estimate a simple dynamic model of earnings that incorporates bivariate heterogeneity in intercept and variance of the innovation process. Profile likelihood is employed to estimate an AR(1) parameter controlling the persistence of the innovations. We find that persistence is relatively modest when we permit heterogeneity in variances. Evidence of negative dependence between individual intercepts and variances is revealed by the nonparametric estimation of the mixing distribution, and has important consequences for forecasting future income trajectories. Advisors/Committee Members: Koenker, Roger W. (advisor), Koenker, Roger W. (Committee Chair), Bera, Anil (committee member), Chung, Eun Yi (committee member), Hirano, Keisuke (committee member), Shao, Xiaofeng (committee member), Zhao, Dave (committee member).

Subjects/Keywords: Unobserved Heterogeneity; Estimation and Inference

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Gu, J. (2015). Unobserved heterogeneity in economic models: testing and estimation. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/88183

Chicago Manual of Style (16^th Edition):

Gu, Jiaying. “Unobserved heterogeneity in economic models: testing and estimation.” 2015. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed February 25, 2020. http://hdl.handle.net/2142/88183.

MLA Handbook (7^th Edition):

Gu, Jiaying. “Unobserved heterogeneity in economic models: testing and estimation.” 2015. Web. 25 Feb 2020.

Vancouver:

Gu J. Unobserved heterogeneity in economic models: testing and estimation. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2015. [cited 2020 Feb 25]. Available from: http://hdl.handle.net/2142/88183.

Council of Science Editors:

Gu J. Unobserved heterogeneity in economic models: testing and estimation. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2015. Available from: http://hdl.handle.net/2142/88183

University of Pretoria

20. [No author]. Determinants and consequences of elephant spatial use in Southern Africa’s arid savannas .

Degree: 2008, University of Pretoria

URL: http://upetd.up.ac.za/thesis/available/etd-08122008-141848/

► Resources that can optimize survival are distributed unevenly across landscapes. I assumed that the distribution of these resources is reflected by landscape heterogeneity and that… (more)

▼ Resources that can optimize survival are distributed unevenly across landscapes. I assumed that the distribution of these resources is reflected by landscape heterogeneity and that selection for areas with relatively high heterogeneity reflects on selection for resources. I therefore hypothesized that landscape heterogeneity determines variability in elephant home range location and size. I evaluated home range sizes for elephants living in the Etosha National Park (n = 6), Khaudum Game Reserve (n = 6) and Ngamiland District 11 (n = 4) during two wet and two dry seasons. I used raster grid landscape maps, which were based on structural classes, to superimpose elephant home ranges and to generate randomly located ranges. I then used the FRAGSTATS programme to calculate five landscape metrics that measure aspects of heterogeneity within elephant and randomly located ranges. I compared landscape heterogeneity of the three study areas using the landscape metrics calculated for the randomly located ranges. Assuming that higher values of Patch density, Lanscape shape index and Shannon diversity index, and lower values of Largest patch index and Contagion implies selection for heterogeneity, I qualitatively compared the distribution and the mean of the landscape metric values for the elephant home ranges with those for the randomly located ranges. The influence of season on selection for the landscape metrics was also evaluated. I searched for relationships between home range size and landscape metrics for the three study areas and searched for a possible relationship between home range size and water point density for elephants in Etosha and Khaudum. Khaudum was consistently more heterogeneous than Etosha and NG11, while the latter was the least heterogeneous. Within these study areas, at least some of the landscape metrics may explain the location of elephant home ranges. The consistent apparent selection for areas with relatively higher values of Landscape shape index and Shannon diversity index and lower values of Largest patch index and Contagion across both wet and/or dry seasons by elephants in Etosha and NG11 suggests that landscape heterogeneity can explain landscape selection by elephants. This did not hold for elephants in Khaudum where elephants inconsistently selected for Largest patch index and Landscape shape index. This study further suggested that landscape heterogeneity did not determine home range size. However, water was a strong determinant of home range size and may therefore explain the lack of selection for heterogeneity in Khaudum. Heterogeneity is an inherent characteristic of landscapes and seems to reflect on the availability of resources that may subsequently influence the way elephants use space. My study supported the concept that increasing space, while promoting heterogeneity for elephants may enhance range expansion. The management of elephants should therefore be directed at optimising the availability of heterogeneous landscapes when setting land aside for their conservation. Management… Advisors/Committee Members: Prof R J van Aarde (advisor).

Subjects/Keywords: Khaudum; Landscape heterogeneity; Etosha; UCTD

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

author], [. (2008). Determinants and consequences of elephant spatial use in Southern Africa’s arid savannas . (Masters Thesis). University of Pretoria. Retrieved from http://upetd.up.ac.za/thesis/available/etd-08122008-141848/

Chicago Manual of Style (16^th Edition):

author], [No. “Determinants and consequences of elephant spatial use in Southern Africa’s arid savannas .” 2008. Masters Thesis, University of Pretoria. Accessed February 25, 2020. http://upetd.up.ac.za/thesis/available/etd-08122008-141848/.

MLA Handbook (7^th Edition):

author], [No. “Determinants and consequences of elephant spatial use in Southern Africa’s arid savannas .” 2008. Web. 25 Feb 2020.

Vancouver:

author] [. Determinants and consequences of elephant spatial use in Southern Africa’s arid savannas . [Internet] [Masters thesis]. University of Pretoria; 2008. [cited 2020 Feb 25]. Available from: http://upetd.up.ac.za/thesis/available/etd-08122008-141848/.

Council of Science Editors:

author] [. Determinants and consequences of elephant spatial use in Southern Africa’s arid savannas . [Masters Thesis]. University of Pretoria; 2008. Available from: http://upetd.up.ac.za/thesis/available/etd-08122008-141848/

Universidade do Rio Grande do Sul

21. Silva, Daniel Nogueira. Desemprego e heterogeneidade da força de trabalho no Brasil (1990-2013).

Degree: 2015, Universidade do Rio Grande do Sul

URL: http://hdl.handle.net/10183/133000

►

O desemprego é um dos principais problemas enfrentados pelas economias capitalistas. Analisando a sua incidência sobre a força de trabalho, há evidências que alguns grupos… (more)

▼

O desemprego é um dos principais problemas enfrentados pelas economias capitalistas. Analisando a sua incidência sobre a força de trabalho, há evidências que alguns grupos de trabalhadores - como as mulheres, os jovens, os negros - sofrem sistematicamente com taxas de desemprego mais elevadas. Neste contexto, o objetivo desta dissertação é analisar a relação entre o desemprego e a heterogeneidade dos trabalhadores e como ela se apresentou no Brasil no período entre 1990 a 2013. A principal hipótese deste trabalho é de que as diferenças existentes entre os trabalhadores - como gênero, raça, idade, entre outras - também podem ser responsáveis, em interação com outros determinantes macroeconômicos, por níveis e dinâmicas diferenciadas de desemprego. A metodologia dessa pesquisa consiste em uma revisão bibliográfica de quatro abordagens macroeconômicas do desemprego e o modo como elas tratam a heterogeneidade da força de trabalho, além do uso de métodos quantitativos com base em dados sobre a economia brasileira. Com base na revisão bibliográfica e nos dados da economia brasileira, é utilizado um modelo econométrico de vetores de correção de erros (VECM) para verificar algumas hipóteses do desemprego e a sua relação com a heterogeneidade. Os resultados do trabalho indicam que, apesar das dificuldades nas teorias do desemprego em inserir a heterogeneidade dos trabalhadores em seus arcabouços teóricos, as visões marxista e pós-keynesiana oferecem importantes instrumentos teóricos e metodológicos para esse tipo de problema. Além disso, os resultados econométricos confirmam, parcialmente, que a demanda efetiva, seguindo a hipótese pós-keynesiana, e o conflito distributivo entre lucros e salários, argumento marxista, são fatores importantes para compreender o desemprego no Brasil. No que diz respeito à relação entre a heterogeneidade e o desemprego, os resultados apontam que um choque na taxa de desemprego incide de forma diferenciada entre os grupos que compõem a força de trabalho. Contudo, nem sempre o desemprego atinge de forma mais intensa os grupos que apresentam historicamente as maiores taxas de desocupação.

Unemployment is one of the main problems faced by capitalist economies. By analyzing its impact on the workforce, the research shows that there are evidences that some groups of workers – such as women, young people, blacks - systematically suffer from higher unemployment rates. In this context, the objective of this work is to analyze the relationship between unemployment and the heterogeneity of workers and how this relationship appears in Brazil from 1990 to 2013. The main hypothesis of this work is that the differences between the workers - such as gender, race, age, among others - may also be responsible, in interaction with other macroeconomic determinants, for the level and the dynamic of the different unemployment rates. The methodology of this research consists of a literature review of four macroeconomic approaches of the unemployment and how they treat the heterogeneity of the workforce, and also the…

Advisors/Committee Members: Milan, Marcelo.

Subjects/Keywords: Unemployment; Economia; Heterogeneity; Workforce; Econometrics

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Silva, D. N. (2015). Desemprego e heterogeneidade da força de trabalho no Brasil (1990-2013). (Thesis). Universidade do Rio Grande do Sul. Retrieved from http://hdl.handle.net/10183/133000

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Silva, Daniel Nogueira. “Desemprego e heterogeneidade da força de trabalho no Brasil (1990-2013).” 2015. Thesis, Universidade do Rio Grande do Sul. Accessed February 25, 2020. http://hdl.handle.net/10183/133000.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Silva, Daniel Nogueira. “Desemprego e heterogeneidade da força de trabalho no Brasil (1990-2013).” 2015. Web. 25 Feb 2020.

Vancouver:

Silva DN. Desemprego e heterogeneidade da força de trabalho no Brasil (1990-2013). [Internet] [Thesis]. Universidade do Rio Grande do Sul; 2015. [cited 2020 Feb 25]. Available from: http://hdl.handle.net/10183/133000.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Silva DN. Desemprego e heterogeneidade da força de trabalho no Brasil (1990-2013). [Thesis]. Universidade do Rio Grande do Sul; 2015. Available from: http://hdl.handle.net/10183/133000

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

22. Hillyer, Philippa. Tissue-specific differences between endothelia : expression and presentation of chemokines and their receptors.

Degree: PhD, 2003, Open University

URL: http://oro.open.ac.uk/63225/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270090

► The recruitment of different leukocyte subpopulations during an inflammatory response is regulated by various molecules expressed by the endothelium. This study examines how chemokine production,… (more)

▼ The recruitment of different leukocyte subpopulations during an inflammatory response is regulated by various molecules expressed by the endothelium. This study examines how chemokine production, the expression of chemokine receptors and the binding of chemokines to the proteoglycan layer vary between endothelia from different vascular beds. Human dermal, lung and liver endothelia were compared with endothelia derived from saphenous and umbilical veins and with a transformed bone marrow cell line. All endothelia produced MCP-1 (CCL2) and IL-8 (CXCL8) constitutively with both these chemokines and IP-10 (CXCL10) and RANTES (CCL5) being secreted after TNF-aor IFN-y stimulation, whereas MlP-1a (CCL3) was not produced under any conditions tested. A combination of TNF-a and IFN-y stimulation increased RANTES and IP-10 production, but reduced IL-8 production. The addition of TGF-p reduced secretion of all chemokines. Differences were found in production levels of each of these chemokines depending on the tissue that the endothelial cells were derived from. MIP-1a, and RANTES bound to the cell surface of each endothelium tested at differing levels, but IP-10 bound only to lung endothelium. RANTES binding was found to be dependent on the presence of Heparan Sulphate Proteoglycan (HSPG), but MIP-1a appeared to bind via a different method. Chemokine receptors CXCR1, CXCR3 and CCR3 were expressed highly at the endothelial cell surface, with lower levels of CXCR2, CXCR4, CXCR5, OCRS and CCR6. Expression of CCR4 varied widely. Using lectins to identify specific oligosaccharides, differences in the composition of the proteoglycan layer were probed. Small variations were shown, but these cannot account for the differences in chemokine binding. These results demonstrate that endothelial cells could be important in the selective recruitment of leukocytes to different tissues, in particular in their expression of chemokines in response to inflammatory stimuli and their presentation of chemokines to the leukocytes In the blood stream.

Subjects/Keywords: 612; Heterogeneity

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hillyer, P. (2003). Tissue-specific differences between endothelia : expression and presentation of chemokines and their receptors. (Doctoral Dissertation). Open University. Retrieved from http://oro.open.ac.uk/63225/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270090

Chicago Manual of Style (16^th Edition):

Hillyer, Philippa. “Tissue-specific differences between endothelia : expression and presentation of chemokines and their receptors.” 2003. Doctoral Dissertation, Open University. Accessed February 25, 2020. http://oro.open.ac.uk/63225/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270090.

MLA Handbook (7^th Edition):

Hillyer, Philippa. “Tissue-specific differences between endothelia : expression and presentation of chemokines and their receptors.” 2003. Web. 25 Feb 2020.

Vancouver:

Hillyer P. Tissue-specific differences between endothelia : expression and presentation of chemokines and their receptors. [Internet] [Doctoral dissertation]. Open University; 2003. [cited 2020 Feb 25]. Available from: http://oro.open.ac.uk/63225/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270090.

Council of Science Editors:

Hillyer P. Tissue-specific differences between endothelia : expression and presentation of chemokines and their receptors. [Doctoral Dissertation]. Open University; 2003. Available from: http://oro.open.ac.uk/63225/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270090

Colorado School of Mines

23. Guo, Yang. Study of colloidal transport and multiphase flow in bead-based micromodels with surface charge and wettability heterogeneities.

Degree: PhD, Chemical and Biological Engineering, 2019, Colorado School of Mines

URL: http://hdl.handle.net/11124/172890

► Micromodels are porous media analogs that help scientists understand the transport phenomena in real-world porous media at the laboratory scale. Compared with traditional field- and… (more)

▼ Micromodels are porous media analogs that help scientists understand the transport phenomena in real-world porous media at the laboratory scale. Compared with traditional field- and column-scale experiments, micromodels have two distinct advantages: (1) its transparency allows researchers to directly visualize relevant transport phenomena occurred inside through optical microscopy. (2) its highly controllable physicochemical properties allow scientists to conveniently decouple the porous medium parameters from various process parameters and study their specific or synergistic impacts systematically. In this thesis we developed new approaches to fabricate bead-based micromodels to study the pore-scale and population behavior of colloidal transport and multiphase flow through porous media. By injecting microscopic beads with different surface functionalities in a microfluidic channel, we were able to fabricate unconsolidated porous media analogs with surface charge and wettability heterogeneities. We also developed a MATLAB program that detected the mass center of each bead in the porous media, which allowed us to replicate the exact experimental domains in numerical simulators for faithful comparison between experiments and modelling. For colloidal transport in porous media with surface charge heterogeneity, we performed experiments at the single pore level and directly extracted the deposition coefficient between colloidal particles and the bead collectors under the favorable deposition conditions. Meanwhile we also obtained the surface blocking function of the particle deposition. Both information can be used directly in numerical simulations, thus eliminating the need of fitting parameters. We obtained a good agreement in the deposition coefficient between pore-scale and population experiments. We further used Norland Optical Adhesive 81 (NOA81) as the material to fabricate micromodels with heterogeneous wettability. Due to its high elastic modulus NOA81 can sustain high pressure during multiphase flow. Our preliminary experiments for the displacement of oil by water demonstrated the feasibility of studying multiphase flow in a close-packed porous medium with wettability heterogeneities. Advisors/Committee Members: Wu, Ning (advisor), Neeves, Keith B. (advisor), Illangasekare, T. H. (committee member), Yin, Xiaolong (committee member), Ranville, James F. (committee member), Chun, Jaehun (committee member).

Subjects/Keywords: Colloidal transport; Chemical heterogeneity; Microfluidic

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Guo, Y. (2019). Study of colloidal transport and multiphase flow in bead-based micromodels with surface charge and wettability heterogeneities. (Doctoral Dissertation). Colorado School of Mines. Retrieved from http://hdl.handle.net/11124/172890

Chicago Manual of Style (16^th Edition):

Guo, Yang. “Study of colloidal transport and multiphase flow in bead-based micromodels with surface charge and wettability heterogeneities.” 2019. Doctoral Dissertation, Colorado School of Mines. Accessed February 25, 2020. http://hdl.handle.net/11124/172890.

MLA Handbook (7^th Edition):

Guo, Yang. “Study of colloidal transport and multiphase flow in bead-based micromodels with surface charge and wettability heterogeneities.” 2019. Web. 25 Feb 2020.

Vancouver:

Guo Y. Study of colloidal transport and multiphase flow in bead-based micromodels with surface charge and wettability heterogeneities. [Internet] [Doctoral dissertation]. Colorado School of Mines; 2019. [cited 2020 Feb 25]. Available from: http://hdl.handle.net/11124/172890.

Council of Science Editors:

Guo Y. Study of colloidal transport and multiphase flow in bead-based micromodels with surface charge and wettability heterogeneities. [Doctoral Dissertation]. Colorado School of Mines; 2019. Available from: http://hdl.handle.net/11124/172890

Boston College

24. Cai, Jinghan. Essays in financial economics.

Degree: PhD, Economics, 2014, Boston College

URL: http://dlib.bc.edu/islandora/object/bc-ir:103579

► This dissertation covers three essays in the realm of investor heterogeneity. Traditional financial economics theories assume that agents are identical. However, daily practice of finance… (more)

▼ This dissertation covers three essays in the realm of investor heterogeneity. Traditional financial economics theories assume that agents are identical. However, daily practice of finance exhibits phenomena that cannot be explained in the context of homogeneous agents. Thus behavioral economists relax the agent homogeneity assumption and allow different types of agents to interplay, which can explain a series of phenomena, including bubbles (Scheinkman and Xiong, 2003,etc), among others. The first chapter of this dissertation answers the question: what kind of investors flock to an IPO – mostly sophisticated or mostly naive? The answer to this question points to explaining the puzzlingly extreme trading volume on the first day after an IPO. Existing explanations rely on institutions such as day trading, short selling and inter-dealer trades, yet IPO frenzies are common even when these are entirely absent. Recent evidence points to the possible importance of sentiment from retail investors, but it is not yet clear what kind of retail investors might be harboring these emotions. I access a unique data set for Chinese IPOs that measures investor experience and trading records. I find that inexperienced investors are initially drawn to the IPO while established investors remain on the sidelines. Over time, investor composition shifts in favor of experienced investors. More importantly, I identify market timing of purchase (together with the timing of selling, the purchase price, etc, which I define as the decision bundle) as the predominant channel for determining heterogeneity in returns for experienced versus for inexperienced investors. Furthermore, I find that investors do learn to be more patient and get better investment performance thereof. Also, I am able to depict the learning curve by documenting that the marginal effect of learning varies across the level of stock of experience, and across heterogeneous investor type. The second chapter examines the effect of short selling via the unique setting in the Hong Kong stock market and find that, when a stock becomes shortable, its trading activities decrease, liquidities worsen, and information asymmetries increase. This finding contradicts both the existing theoretical models, and recent empirical studies using global financial crisis data. We extend the sequential trading model with short-sales constraints of one asset by Diamond and Verrecchia (1987) to the case of multiple assets. The model predicts that our empirical results are due to uninformed traders switching their tradings to non-shortable securities. Chapter 3 uses a unique short selling setting in Hong Kong stock market, and tests the Chen and Singal (2003) hypothesis that speculative short sellers add to the selling pressure on Mondays and hence add to the weekend effect. We document that, first, the weekend effect exists in Hong Kong stock market, regardless of the existence of short sale constraints; second, after introducing short selling, the individual stocks face more significant weekend effect.… Advisors/Committee Members: Zhijie Xiao (Thesis advisor).

Subjects/Keywords: behavioral finance; investor heterogeneity

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Cai, J. (2014). Essays in financial economics. (Doctoral Dissertation). Boston College. Retrieved from http://dlib.bc.edu/islandora/object/bc-ir:103579

Chicago Manual of Style (16^th Edition):

Cai, Jinghan. “Essays in financial economics.” 2014. Doctoral Dissertation, Boston College. Accessed February 25, 2020. http://dlib.bc.edu/islandora/object/bc-ir:103579.

MLA Handbook (7^th Edition):

Cai, Jinghan. “Essays in financial economics.” 2014. Web. 25 Feb 2020.

Vancouver:

Cai J. Essays in financial economics. [Internet] [Doctoral dissertation]. Boston College; 2014. [cited 2020 Feb 25]. Available from: http://dlib.bc.edu/islandora/object/bc-ir:103579.

Council of Science Editors:

Cai J. Essays in financial economics. [Doctoral Dissertation]. Boston College; 2014. Available from: http://dlib.bc.edu/islandora/object/bc-ir:103579

University of Cambridge

25. Luo, Hao. Numerical Investigation of Hydrate-bearing Sediment Formation Heterogeneity during Methane Gas Recovery.

Degree: PhD, 2019, University of Cambridge

URL: https://www.repository.cam.ac.uk/handle/1810/298237

► The first offshore methane hydrate recovery trial was conducted in 2013 on the north slope of the Daini Atsumi Knoll in Eastern Nankai Trough, Japan.… (more)

Subjects/Keywords: methane hydrate; heterogeneity; COMSOL

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APA (6^th Edition):

Luo, H. (2019). Numerical Investigation of Hydrate-bearing Sediment Formation Heterogeneity during Methane Gas Recovery. (Doctoral Dissertation). University of Cambridge. Retrieved from https://www.repository.cam.ac.uk/handle/1810/298237

Chicago Manual of Style (16^th Edition):

Luo, Hao. “Numerical Investigation of Hydrate-bearing Sediment Formation Heterogeneity during Methane Gas Recovery.” 2019. Doctoral Dissertation, University of Cambridge. Accessed February 25, 2020. https://www.repository.cam.ac.uk/handle/1810/298237.

MLA Handbook (7^th Edition):

Luo, Hao. “Numerical Investigation of Hydrate-bearing Sediment Formation Heterogeneity during Methane Gas Recovery.” 2019. Web. 25 Feb 2020.

Vancouver:

Luo H. Numerical Investigation of Hydrate-bearing Sediment Formation Heterogeneity during Methane Gas Recovery. [Internet] [Doctoral dissertation]. University of Cambridge; 2019. [cited 2020 Feb 25]. Available from: https://www.repository.cam.ac.uk/handle/1810/298237.

Council of Science Editors:

Luo H. Numerical Investigation of Hydrate-bearing Sediment Formation Heterogeneity during Methane Gas Recovery. [Doctoral Dissertation]. University of Cambridge; 2019. Available from: https://www.repository.cam.ac.uk/handle/1810/298237

Delft University of Technology

26. De Jong, T. Needle deflection in tissue:.

Degree: 2015, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:e94441f3-8395-4529-acb1-8f251d35d932

► Introduction: One of the factors that contribute to the total needle-targeting error in medical procedures is needle deflection, which can lead to e.g. hemorrhage, prolonged… (more)

▼ Introduction: One of the factors that contribute to the total needle-targeting error in medical procedures is needle deflection, which can lead to e.g. hemorrhage, prolonged intervention time and decreased treatment efficiency. This deflection can be defined as the deviation of the needle from its suspected straight insertion path. In this study, we focused on the effect of tissue heterogeneity on needle deflection. We hypothesized that needle deflection would be bigger for insertions into heterogeneous than homogeneous specimens, due to an unequal force distribution on the needle. Method: the inner needle of a 18Gauge trocar needle with triangular tip was inserted (5mm/s) multiple times at several positions into 4 gelatin-, 4 animal liver-, and 2 human liver specimens. Deflection in X- and Y-direction was measured using sliding gauges and axial forces acting on the needle were captured using a force sensor mounted onto the needle hub. Axial force analysis was used to give a rough estimation of the mechanical properties of the specimens. Results: Results show an increase in magnitude and variance for needle insertions into the liver specimens (Animal: Mean = 1.01mm, SD = 0.54, Human: Mean = 0.83mm, SD = 0.48) compared with those into gelatin specimens (Mean = 0.59mm, SD = 0.26mm). Differences between the median and maximal needle tip forces for insertions into gelatin were almost zero (Mean = 0.08, SD = 0.04N), whereas those differences were bigger for insertions into tissue specimens (Mean = 0.58, SD = 0.23N), indicating the homogeneous nature of gelatin and heterogeneous nature of tissue. Discussion: The results obtained in this study suggest that heterogeneity causes the needle to deflect from its straight path. Both magnitude and variance of needle deflection are bigger for insertions into heterogeneous tissue specimens than into homogeneous gelatin specimens. A suggestion for future research is to study the effect of pathologic tissue on needle deflection, as this type of tissue is known for being more heterogeneous than healthy tissue. Advisors/Committee Members: Dankelman, J., Van den Dobbelsteen, J.J..

Subjects/Keywords: needle deflection; heterogeneity; gelatin; liver

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APA (6^th Edition):

De Jong, T. (2015). Needle deflection in tissue:. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:e94441f3-8395-4529-acb1-8f251d35d932

Chicago Manual of Style (16^th Edition):

De Jong, T. “Needle deflection in tissue:.” 2015. Masters Thesis, Delft University of Technology. Accessed February 25, 2020. http://resolver.tudelft.nl/uuid:e94441f3-8395-4529-acb1-8f251d35d932.

MLA Handbook (7^th Edition):

De Jong, T. “Needle deflection in tissue:.” 2015. Web. 25 Feb 2020.

Vancouver:

De Jong T. Needle deflection in tissue:. [Internet] [Masters thesis]. Delft University of Technology; 2015. [cited 2020 Feb 25]. Available from: http://resolver.tudelft.nl/uuid:e94441f3-8395-4529-acb1-8f251d35d932.

Council of Science Editors:

De Jong T. Needle deflection in tissue:. [Masters Thesis]. Delft University of Technology; 2015. Available from: http://resolver.tudelft.nl/uuid:e94441f3-8395-4529-acb1-8f251d35d932

Cornell University

27. Faessler, Lauren. Innovation Without Change Or Extinction: An Institutional Analysis Of The Persistence Of Alternative Schools .

Degree: 2014, Cornell University

URL: http://hdl.handle.net/1813/37097

► U.S. public schools systematically serve some student populations better than others. Higher expectations, more resources, more rigorous content and instruction, and priorities reflecting students' purposes… (more)

▼ U.S. public schools systematically serve some student populations better than others. Higher expectations, more resources, more rigorous content and instruction, and priorities reflecting students' purposes for education support opportunity for some. Social unrest in the 1960s reframed diverse education outcomes for students as inequity, a problem for democracy and civil rights. In that milieu, public secondary alternative schools emerged as innovative response to this socially articulated and shared problem in public education. In the first decade of the 21st century, public secondary alternative schools (alternative schools) serve consistently around 2.3% of secondary students in the U.S., about 600,000 students annually. Institutional theory predicts that innovative organizations in highly institutionalized sectors, like U.S. public education, will not persist as heterogeneous alternatives. Current models (Greenwood, Suddaby & Hinings, 2002) describe an institutional change path for innovation to either institutionalization, institutionalized organizations in a field adopt the innovative structures and practices, or extinction as fad or fashion. But, alternative schools have persisted as heterogeneous alternatives for more than forty years. This study addresses the question, "what about the role of public alternative schools allows them to persist as peripheral heterogeneous organizations in the institutionalized field of U.S. public secondary schools?" A mixed methods approach to this study allows inquiry and analysis into multiple levels of the institutional dynamics: 1) an analysis of the history of alternative schools, as organizations that evolve to address unmet priorities for changing populations underserved by traditional school organizations, connects alternative structures and practices to stakeholders' alternative priorities for these schools; 2) a longitudinal analysis, of National Center for Education Statistics (NCES) demographic and resource data, describes trends in differences between traditional and alternative secondary schools in the U.S. and makes the case that alternative schools engage in their work with different student populations and different levels of resources; and, 3) two case studies explain work that is understood as important for different stakeholders in two, different type alternative schools. The accounts of that work legitimate school structures and practices, and the schools themselves. Findings trace alternative schools as innovation through the Stages of Institutional Change (Suddaby, et al., 2002) arguing for a third path of persistence for alternative heterogeneous organizations in institutionalized environments. Alternative schools address diverse priorities for public education in the U.S.; serve high-needs populations of students in much higher concentrations than regular schools and with fewer resources; and these schools may need to maintain their heterogeneity to effectively address the priorities of local constituent groups. Alternative schools stabilize the field… Advisors/Committee Members: Brown, David L (committeeMember), Hamilton, Stephen Frederic (committeeMember).

Subjects/Keywords: Alternative Schools; Institutional Change; Heterogeneity

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APA (6^th Edition):

Faessler, L. (2014). Innovation Without Change Or Extinction: An Institutional Analysis Of The Persistence Of Alternative Schools . (Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/37097

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Faessler, Lauren. “Innovation Without Change Or Extinction: An Institutional Analysis Of The Persistence Of Alternative Schools .” 2014. Thesis, Cornell University. Accessed February 25, 2020. http://hdl.handle.net/1813/37097.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Faessler, Lauren. “Innovation Without Change Or Extinction: An Institutional Analysis Of The Persistence Of Alternative Schools .” 2014. Web. 25 Feb 2020.

Vancouver:

Faessler L. Innovation Without Change Or Extinction: An Institutional Analysis Of The Persistence Of Alternative Schools . [Internet] [Thesis]. Cornell University; 2014. [cited 2020 Feb 25]. Available from: http://hdl.handle.net/1813/37097.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Faessler L. Innovation Without Change Or Extinction: An Institutional Analysis Of The Persistence Of Alternative Schools . [Thesis]. Cornell University; 2014. Available from: http://hdl.handle.net/1813/37097

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Cornell University

28. Satyavolu, Saisandeep. Bayesian Nonparametric Methods In Marketing .

Degree: 2016, Cornell University

URL: http://hdl.handle.net/1813/44387

► The proliferation of available data in marketing has placed an emphasis on the applicability of extant marketing models to big data. To tackle this problem,… (more)

▼ The proliferation of available data in marketing has placed an emphasis on the applicability of extant marketing models to big data. To tackle this problem, methods from machine learning have been increasingly applied by the marketing community. This line of research is a subset of research in marketing that is becoming interdisciplinary. A number of marketing researchers have successfuly adopted methods from other seemingly unrelated fields in their research. In that vein, this thesis examines the applicability of Bayesian Nonparametric methods (from the field of machine learning) to marketing. The first chapter of this thesis provides a very brief survey of marketing research papers that have enhanced pure marketing models using methods from machine learning. The second chapter describes the Dirichlet Process, a key component of Bayesian Nonparametric analysis and provides two synthetic data applications. Going forward, we study the applicability of Bayesian Nonparametric methods to model Heterogeneity across multiple markets. Bayesian Nonparametric methods have been used in marketing and economics literature to model heterogeneity in discrete choice models, but past applications have only been limited to data from a single market. So as to compare heterogeneity in consumer preferences across multiple markets, we use the Hierarchical Dirichlet Process (HDP) which lets multiple "groups" of data "share statistical strength". Heterogeneity across multiple markets is modeled using the HDP in two different contexts (B2C and B2B) in this thesis. Our work shows that the HDP provides a convenient "middle ground" to other extreme modeling options, which are (1) ignore heterogeneity of preferences across markets and (2) model each market separately. Another aspect of the HDP is the ease with which it can be incorporated into models of discrete choice. The models developed and estimated in this thesis are also helpful for the marketing manager. In the B2C application, the results of the model provide the manager with a practical way of tailoring targeting activities towards consumers with varying preferences. Finally, in the B2B application, we find that based on the Stage of the selling process, some marketing activities play a larger role than others in converting sales leads into clients. These results provide a data driven basis for the manager to appropriately allocate marketing dollars to activities based on the selling process. Advisors/Committee Members: Gupta,Sachin (committeeMember), Molinari,Francesca (committeeMember), Kadiyali,Vrinda (committeeMember).

Subjects/Keywords: Bayesian Nonparametrics; Heterogeneity; Multiple Markets

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APA (6^th Edition):

Satyavolu, S. (2016). Bayesian Nonparametric Methods In Marketing . (Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/44387

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Satyavolu, Saisandeep. “Bayesian Nonparametric Methods In Marketing .” 2016. Thesis, Cornell University. Accessed February 25, 2020. http://hdl.handle.net/1813/44387.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Satyavolu, Saisandeep. “Bayesian Nonparametric Methods In Marketing .” 2016. Web. 25 Feb 2020.

Vancouver:

Satyavolu S. Bayesian Nonparametric Methods In Marketing . [Internet] [Thesis]. Cornell University; 2016. [cited 2020 Feb 25]. Available from: http://hdl.handle.net/1813/44387.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Satyavolu S. Bayesian Nonparametric Methods In Marketing . [Thesis]. Cornell University; 2016. Available from: http://hdl.handle.net/1813/44387

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Edinburgh

29. Nguyen, Duc Duy. Boards, CEOs and bank behavior : regulatory and performance perspectives.

Degree: PhD, 2015, University of Edinburgh

URL: http://hdl.handle.net/1842/25973

► This thesis consists of three essays on the performance implications of senior decision-makers in the banking industry. While the first chapter looks at one aspect… (more)

▼ This thesis consists of three essays on the performance implications of senior decision-makers in the banking industry. While the first chapter looks at one aspect of bank performance from a regulatory perspective, the next two chapters study performance from an investor perspective. The first chapter uses regulatory enforcement actions issued against US banks to show that both board monitoring and advising are effective in preventing misconduct by banks. While better monitoring by boards prevents all categories of misconduct, better advising prevents misconduct of a technical nature. Board monitoring increases the likelihood that misconduct is detected, increases the penalties imposed on the CEO, and alleviates shareholder wealth losses following the detection of misconduct by regulators. This chapter offers novel insights on how to structure bank boards to prevent bank misconduct. The second chapter seeks to understand how the characteristics of bank executives affect the market performance of US banks. To explore the expected performance effects linked to executive characteristics, the changes in the market valuation of banks linked to announcements of executive appointments are estimated. The chapter shows that age, education and the prior work experience of executives create shareholder wealth while gender is not linked to measureable value effects. Furthermore, these wealth effects are moderated by the level of influence of incoming executives, with their magnitude diminished under independent boards and higher if the incoming executive is also appointed as CEO. The results are robust to the treatment of selection bias. This chapter contributes to the current debate on whether and how individual executives matter for firm performance. The findings also shed light on the value of human capital in the banking industry. The third chapter explores how the cultural heritage of senior decision-makers affects bank outcomes. To study cultural heritage, this chapter focuses on US-born CEOs who are the children or grandchildren of immigrants. Using a hand-collected dataset that tracks the family tree of US bank CEOs, it is shown that the cultural characteristics prevailing in the country of a CEO’s ancestors influence firm performance under pressure. How CEOs respond to competitive pressure is driven by specific cultural dimensions and is causally related to corporate policy choices. To establish causality, I use variation in industry competition generated by a quasi-natural experiment, the staggered adoption of barriers to US interstate branching in the 1990s. I also use an out-of-sample test using a non-banking competitive shock, the Canada-United States Free Trade Agreement, and find robust results.

Subjects/Keywords: banks; corporate governance; director; heterogeneity

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Nguyen, D. D. (2015). Boards, CEOs and bank behavior : regulatory and performance perspectives. (Doctoral Dissertation). University of Edinburgh. Retrieved from http://hdl.handle.net/1842/25973

Chicago Manual of Style (16^th Edition):

Nguyen, Duc Duy. “Boards, CEOs and bank behavior : regulatory and performance perspectives.” 2015. Doctoral Dissertation, University of Edinburgh. Accessed February 25, 2020. http://hdl.handle.net/1842/25973.

MLA Handbook (7^th Edition):

Nguyen, Duc Duy. “Boards, CEOs and bank behavior : regulatory and performance perspectives.” 2015. Web. 25 Feb 2020.

Vancouver:

Nguyen DD. Boards, CEOs and bank behavior : regulatory and performance perspectives. [Internet] [Doctoral dissertation]. University of Edinburgh; 2015. [cited 2020 Feb 25]. Available from: http://hdl.handle.net/1842/25973.

Council of Science Editors:

Nguyen DD. Boards, CEOs and bank behavior : regulatory and performance perspectives. [Doctoral Dissertation]. University of Edinburgh; 2015. Available from: http://hdl.handle.net/1842/25973

University of Toronto

30. Odame, Jodie. Molecular Characterization of Preeclampsia In Vivo and In Vitro.

Degree: 2014, University of Toronto

URL: http://hdl.handle.net/1807/75764

►

Preeclampsia (PE) is a hypertensive disorder of pregnancy characterized by poor placental development. Unfortunately, variations in PE pathogenesis have made management and development of effective… (more)

Subjects/Keywords: heterogeneity; preeclampsia; pregnancy; 0719

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Odame, J. (2014). Molecular Characterization of Preeclampsia In Vivo and In Vitro. (Masters Thesis). University of Toronto. Retrieved from http://hdl.handle.net/1807/75764

Chicago Manual of Style (16^th Edition):

Odame, Jodie. “Molecular Characterization of Preeclampsia In Vivo and In Vitro.” 2014. Masters Thesis, University of Toronto. Accessed February 25, 2020. http://hdl.handle.net/1807/75764.

MLA Handbook (7^th Edition):

Odame, Jodie. “Molecular Characterization of Preeclampsia In Vivo and In Vitro.” 2014. Web. 25 Feb 2020.

Vancouver:

Odame J. Molecular Characterization of Preeclampsia In Vivo and In Vitro. [Internet] [Masters thesis]. University of Toronto; 2014. [cited 2020 Feb 25]. Available from: http://hdl.handle.net/1807/75764.

Council of Science Editors:

Odame J. Molecular Characterization of Preeclampsia In Vivo and In Vitro. [Masters Thesis]. University of Toronto; 2014. Available from: http://hdl.handle.net/1807/75764

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Open Access Theses and Dissertations