Division of the Humanities and Social Sciences California Institute of Technology Pasadena, California 91125 Range Convexity and Ambiguity Averse Preferences
نویسندگان
چکیده
We show that range convexity of beliefs, a ‘technical’ condition that appears naturally in axiomatizations of preferences in a Savage-like framework, imposes some unexpected restrictions when modelling ambiguity averse preferences. That is, when it is added to a mild condition, range convexity makes the preferences collapse to subjective expected utility as soon as they satisfy structural conditions that are typically used to characterize ambiguity aversion. JEL classification numbers: D81
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Division of the Humanities and Social Sciences, California Institute of Technology, Pasadena, CA 91125; Faculty of Business and Economics, The University of Melbourne, Carlton, VIC 3010, Australia; Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC 3052, Australia; and Computation and Neural Systems, California Institute of Technology, Pasadena, CA 9...
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