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Journal Article
A NOTE ON COMPARATIVE AMBIGUITY AVERSION AND JUSTIFIABILITY
2016
Overview
We consider a decision maker who ranks actions according to the smooth ambiguity criterion of Klibanoff, Marinacci, and Mukerji (2005). An action is justifiable if it is a best reply to some belief over probabilistic models. We show that higher ambiguity aversion expands the set of justifiable actions. A similar result holds for risk aversion. Our results follow from a generalization of the duality lemma of Wald (1949) and Pearce (1984).
Publisher
Econometric Society,Blackwell Publishing Ltd
Subject
