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Existence of sparsely supported correlated equilibria

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Author Info
Fabrizio Germano ()
Gábor Lugosi ()

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Abstract

We show that every finite N-player normal form game possesses a correlated equilibrium with a precise lower bound on the number of outcomes to which it assigns zero probability. In particular, the largest games with a unique fully supported correlated equilibrium are two-player games; moreover, the lower bound grows exponentially in the number of players N.

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File URL: http://www.econ.upf.edu/docs/papers/downloads/907.pdf
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Publisher Info
Paper provided by Department of Economics and Business, Universitat Pompeu Fabra in its series Economics Working Papers with number 907.

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Date of creation: Oct 2005
Date of revision: Apr 2006
Handle: RePEc:upf:upfgen:907

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Web page: http://www.econ.upf.edu/

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Related research
Keywords: Correlated equilibrium; finite games;

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Find related papers by JEL classification:
C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games

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  1. Aumann, Robert J., 1974. "Subjectivity and correlation in randomized strategies," Journal of Mathematical Economics, Elsevier, vol. 1(1), pages 67-96, March. [Downloadable!] (restricted)
  2. Noa Nitzan, 2005. "Tight Correlated Equilibrium," Discussion Paper Series dp394, Center for Rationality and Interactive Decision Theory, Hebrew University, Jerusalem. [Downloadable!]
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This page was last updated on 2009-12-18.

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