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Implementation in mixed Nash equilibrium
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Mezzetti, Claudio and Renou, Ludovic (2009) Implementation in mixed Nash equilibrium. Working Paper. Coventry: University of Warwick, Department of Economics. Warwick economic research papers (No.902).
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Official URL: http://www2.warwick.ac.uk/fac/soc/economics/resear...
Abstract
A mechanism implements a social choice correspondence f in mixed Nash equilibrium if at any preference profile, the set of all pure and mixed Nash equilibrium outcomes coincides with the set of f-optimal alternatives at that preference profile. This definition generalizes Maskin’s definition of Nash implementation in that it does not require each optimal alternative to be the outcome of a pure Nash equilibrium. We show that the condition of weak set-monotonicity, a weakening of Maskin’s monotonicity, is necessary for implementation. We provide sufficient conditions for implementation and show that important social choice correspondences that are not Maskin monotonic can be implemented in mixed Nash equilibrium.
Item Type: | Working or Discussion Paper (Working Paper) | ||||
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Subjects: | H Social Sciences > HB Economic Theory | ||||
Divisions: | Faculty of Social Sciences > Economics | ||||
Library of Congress Subject Headings (LCSH): | Noncooperative games (Mathematics), Equilibrium (Economics), Game theory, Social choice | ||||
Series Name: | Warwick economic research papers | ||||
Publisher: | University of Warwick, Department of Economics | ||||
Place of Publication: | Coventry | ||||
Official Date: | 28 April 2009 | ||||
Dates: |
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Number: | No.902 | ||||
Number of Pages: | 29 | ||||
Status: | Not Peer Reviewed | ||||
Access rights to Published version: | Open Access (Creative Commons) |
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