Condorcet meets Ellsberg

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,: Department of Economics, London School of Economics and Political Science
Authors registered in the RePEc Author Service: Andrew Ellis

Theoretical Economics, 2016, vol. 11, issue 3

Abstract: The Condorcet Jury Theorem states that given subjective expected utility maximization and common values, the equilibrium probability that the correct candidate wins goes to one as the size of the electorate goes to infinity. This paper studies strategic voting when voters have pure common values but may be ambiguity averse -- exhibit Ellsberg-type behavior -- as modeled by maxmin expected utility preferences. It provides sufficient conditions so that the equilibrium probability of the correct candidate winning the election is bounded above by one half in at least one state. As a consequence, there is no equilibrium in which information aggregates.

Keywords: Ambiguity; voting; elections; information aggregation (search for similar items in EconPapers)
JEL-codes: D72 D81 (search for similar items in EconPapers)
Date: 2016-09-13
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (31)

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