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University of Exeter

1. Hartmann, L. Perceived ambiguity, ambiguity attitude and strategic ambiguity in games.

Degree: PhD, 2019, University of Exeter

This thesis contributes to the theoretical work on decision and game theory when decision makers or players perceive ambiguity. The first article introduces a new axiomatic framework for ambiguity aversion and provides axiomatic characterizations for important preference classes that thus far had lacked characterizations. The second article introduces a new axiom called Weak Monotonicity which is shown to play a crucial role in the multiple prior model. It is shown that for many important preference classes, the assumption of monotonic preferences is a consequence of the other axioms and does not have to be assumed. The third article introduces an intuitive definition of perceived ambiguity in the multiple prior model. It is shown that the approach allows an application to games where players perceive strategic ambiguity. A very general equilibrium existence result is given. The modelling capabilities of the approach are highlighted through the analysis of examples. The fourth article applies the model from the previous article to a specific class of games with a lattice-structure. We perform comparative statics on perceived ambiguity and ambiguity attitude. We show that more optimism does not necessarily lead to higher equilibria when players have Alpha-Maxmin preferences. We present necessary and sufficient conditions on the structure of the prior sets for this comparative statics result to hold. The introductory chapter provides the basis of the four articles in this thesis. An overview of axiomatic decision theory, decision-making under ambiguity and ambiguous games is given. It introduces and discusses the most relevant results from the literature.

Subjects/Keywords: 330; Choquet Expected Utility; Balanced Capacities; Exact Capacities; Multiple Priors; Monotonicity; Weak Monotonicity; Maxmin Expected Utility; Subjective Expected Utility; Perceived Ambiguity; Ambiguity Attitude; Ambiguous Games; Alpha-Maxmin Preferences; Comparative Statics

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

APA (6th Edition):

Hartmann, L. (2019). Perceived ambiguity, ambiguity attitude and strategic ambiguity in games. (Doctoral Dissertation). University of Exeter. Retrieved from http://hdl.handle.net/10871/35581

Chicago Manual of Style (16th Edition):

Hartmann, L. “Perceived ambiguity, ambiguity attitude and strategic ambiguity in games.” 2019. Doctoral Dissertation, University of Exeter. Accessed September 19, 2020. http://hdl.handle.net/10871/35581.

MLA Handbook (7th Edition):

Hartmann, L. “Perceived ambiguity, ambiguity attitude and strategic ambiguity in games.” 2019. Web. 19 Sep 2020.

Vancouver:

Hartmann L. Perceived ambiguity, ambiguity attitude and strategic ambiguity in games. [Internet] [Doctoral dissertation]. University of Exeter; 2019. [cited 2020 Sep 19]. Available from: http://hdl.handle.net/10871/35581.

Council of Science Editors:

Hartmann L. Perceived ambiguity, ambiguity attitude and strategic ambiguity in games. [Doctoral Dissertation]. University of Exeter; 2019. Available from: http://hdl.handle.net/10871/35581

2. Sammoud, Rihab. La diffusion de la stratégie au sein de l’entreprise : le cas du secteur bancaire : The communication strategy in business : the case of the banking sector.

Degree: Docteur es, Sciences de gestion, 2013, Université Montesquieu – Bordeaux IV

Ce travail de recherche porte sur la diffusion de la stratégie au sein de la banque. En effet, nous avons cherché à déterminer les étapes clés de la mise en évidence d’un processus de diffusion au sein de la banque, de déterminer les freins que peuvent rencontrés les banquiers lors de ce processus et d’évaluer leur impact sur la mise en oeuvre de la stratégie. En effet, la diffusion est le processus par lequel la stratégie est déclinée à travers toute la banque. Or, la compréhension et le soutien qu’accordent les membres de la banque dépendent, entre autres, du processus grâce auquel iles en prennent connaissance. C’est pourquoi, l’étude de la diffusion apparait pertinente. Ainsi, comprendre en profondeur le processus de la diffusion en termes de modalités et de contenus, nous a permis de détecter les éléments qui peuvent freiner le développement d’une représentation stratégique partagée et comprise par l’ensemble de la banque, de la stratégie envisagée, et influencer la qualité de la mise en oeuvre. Notre analyse s’est essentiellement basée sur une démarche abductive qui consiste à procéder par allers retours entre théorie et terrain et qui nous a permis de renforcer la validité de notre cadre conceptuel et de le compléter par les éléments de notre analyse des cas. Au final, nous avons détecté un ensemble de freins à la diffusion de la stratégie au sein de la banque qui sont essentiellement : la sur information, les capacités cognitives, la résistance au changement, la nature de la stratégie et le nombre des niveaux hiérarchiques et dont l’impact le plus marquant est le dérapage de la mise en oeuvre.

This study deals with the communication of strategy within the banking sector. Our aim was to highlight the key steps involved in the communication process of banks, identify the challenges faced by bankers regarding that process and assess their role in the promotion of the strategy. Indeed, communication is the channel through which the strategy will be spread throughout the bank. Yet, the understanding and defense of the strategy by the employees, greatly depends on the way it has been conveyed to them; hence the importance and relevance of communication studies. Thus, a deep understanding of communication processes in terms of form as well as content, allowed us to pinpoint the elements that might prevent the development of a common strategic representation, understood by all, and affect the quality of its implementation. Our study is essentially based on an abductive approach that consists in going back and forth between theory and confirmation on the field. This method allowed us to strengthen the validity of our conceptual framework and supplement it with examples derived from our study case. In the end, we came up with the conclusion that many elements prevent the good circulation of strategy information within a bank. The main ones being: over-information, cognitive capacities, the resistance to change, the nature of the strategy as well as the number of hierarchical levels whose most striking consequence is…

Advisors/Committee Members: Lamarque, Éric (thesis director).

Subjects/Keywords: La diffusion de la stratégie; Processus stratégique; Discours stratégique; Communication interne; Tableau de bord prospectif; Vision stratégique; Mission; Valeurs; Objectifs; Sur information; Capacités cognitives; Résistance au changement; Dérapage de la mise en oeuvre; Communication strategy; Strategic process; Strategic discourse; Internal communication; Balanced scored; Strategic vision; Values; Objectives; Over information; Cognitive capacities; Resistance to change; Failure of implementation; 650

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

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

APA (6th Edition):

Sammoud, R. (2013). La diffusion de la stratégie au sein de l’entreprise : le cas du secteur bancaire : The communication strategy in business : the case of the banking sector. (Doctoral Dissertation). Université Montesquieu – Bordeaux IV. Retrieved from http://www.theses.fr/2013BOR40037

Chicago Manual of Style (16th Edition):

Sammoud, Rihab. “La diffusion de la stratégie au sein de l’entreprise : le cas du secteur bancaire : The communication strategy in business : the case of the banking sector.” 2013. Doctoral Dissertation, Université Montesquieu – Bordeaux IV. Accessed September 19, 2020. http://www.theses.fr/2013BOR40037.

MLA Handbook (7th Edition):

Sammoud, Rihab. “La diffusion de la stratégie au sein de l’entreprise : le cas du secteur bancaire : The communication strategy in business : the case of the banking sector.” 2013. Web. 19 Sep 2020.

Vancouver:

Sammoud R. La diffusion de la stratégie au sein de l’entreprise : le cas du secteur bancaire : The communication strategy in business : the case of the banking sector. [Internet] [Doctoral dissertation]. Université Montesquieu – Bordeaux IV; 2013. [cited 2020 Sep 19]. Available from: http://www.theses.fr/2013BOR40037.

Council of Science Editors:

Sammoud R. La diffusion de la stratégie au sein de l’entreprise : le cas du secteur bancaire : The communication strategy in business : the case of the banking sector. [Doctoral Dissertation]. Université Montesquieu – Bordeaux IV; 2013. Available from: http://www.theses.fr/2013BOR40037

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