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On existence of ex post Nash consistent representation for effectivity functions

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Abstract

We consider effectivity functions for finitely many players and alternatives. We assume that players have incomplete information—with private values—about the preferences of the other players. Our main result is the characterization of effectivity functions which have an ex post Nash consistent representation, i.e., there is a game form such that (i) the distribution of power among coalitions of players is the same as in the effectivity function and (ii) there is an ex post Nash equilibrium (in pure strategies) for any preference profile.
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Details

Original languageEnglish
Pages (from-to)287-307
JournalSocial Choice and Welfare
Volume45
Issue number2
DOIs
Publication statusPublished - 1 Jan 2015