Show simple item record

dc.contributor.authorHartmann, L
dc.date.accessioned2019-01-24T09:13:27Z
dc.date.issued2019-01-07
dc.description.abstractThis 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.en_GB
dc.identifier.urihttp://hdl.handle.net/10871/35581
dc.publisherUniversity of Exeteren_GB
dc.subjectChoquet Expected Utilityen_GB
dc.subjectBalanced Capacitiesen_GB
dc.subjectExact Capacitiesen_GB
dc.subjectMultiple Priorsen_GB
dc.subjectMonotonicityen_GB
dc.subjectWeak Monotonicityen_GB
dc.subjectMaxmin Expected Utilityen_GB
dc.subjectSubjective Expected Utilityen_GB
dc.subjectPerceived Ambiguityen_GB
dc.subjectAmbiguity Attitudeen_GB
dc.subjectAmbiguous Gamesen_GB
dc.subjectAlpha-Maxmin Preferencesen_GB
dc.subjectComparative Staticsen_GB
dc.titlePerceived Ambiguity, Ambiguity Attitude and Strategic Ambiguity in Gamesen_GB
dc.typeThesis or dissertationen_GB
dc.date.available2019-01-24T09:13:27Z
dc.contributor.advisorKelsey, Den_GB
dc.contributor.advisorBalkenborg, Den_GB
dc.publisher.departmentEconomicsen_GB
dc.rights.urihttp://www.rioxx.net/licenses/all-rights-reserveden_GB
dc.type.degreetitlePhD in Economicsen_GB
dc.type.qualificationlevelDoctoralen_GB
dc.type.qualificationnameDoctoral Thesisen_GB
dcterms.dateAccepted2019-01-24
rioxxterms.versionNAen_GB
rioxxterms.licenseref.startdate2018-12-14
rioxxterms.typeThesisen_GB
refterms.dateFOA2019-01-24T09:13:32Z


Files in this item

This item appears in the following Collection(s)

Show simple item record