Decision theory under ambiguity

Johanna Etner, Meglena Jeleva and Jean-Marc Tallon
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Meglena Jeleva: GAINS - Groupe d'Analyse des Itinéraires et des Niveaux Salariaux - UM - Le Mans Université

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Abstract: We review recent advances in the field of decision making under uncertainty or ambiguity. We start with a presentation of the general approach to a decision problem under uncertainty, as well as the 'standard' Bayesian treatment and issues with this treatment. We present more general approaches (Choquet expected utility, maximin expected utility, smooth ambiguity and so forth) that have been developed in the literature under the name of models of ambiguity sensitive preferences. We draw a distinction between fully subjective models and models incorporating explicitly some information. We review definitions and characterizations of ambiguity aversion in these models. We mention the challenges posed by some of the models presented. We end with a review of part of the experimental literature and applications of these models to economic settings.

Keywords: Ambiguity; ambiguity aversion; uncertainty; decision (search for similar items in EconPapers)
Date: 2012-04
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Citations: View citations in EconPapers (110)

Published in Journal of Economic Surveys, 2012, 26 (2), pp.234-270. ⟨10.1111/j.1467-6419.2010.00641.x⟩

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Related works:
Journal Article: DECISION THEORY UNDER AMBIGUITY (2012)
Working Paper: Decision theory under ambiguity (2012)
Working Paper: Decision theory under ambiguity (2012)
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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:halshs-00643580

DOI: 10.1111/j.1467-6419.2010.00641.x

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