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A class of strategy-correlated equilibria in sender–receiver games

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  • Blume, Andreas

Abstract

This paper shows that the efficiency bound for communication equilibria identified by Goltsman et al. (2009) in the leading example of the Crawford–Sobel model can be obtained with strategy-correlated equilibria, thus preserving privacy vis-à-vis the mediator. More generally, all equilibrium outcomes of the ϵ-noise model of Blume et al. (2007), including outcomes with an uncountable infinity of equilibrium actions, can be obtained via strategy-correlated equilibria of the noise-free game. The occasional mismatch between the encoding and decoding rules used by sender and receiver in a strategy-correlated equilibrium can be interpreted as uncertainty about language use.

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Bibliographic Info

Article provided by Elsevier in its journal Games and Economic Behavior.

Volume (Year): 75 (2012)
Issue (Month): 2 ()
Pages: 510-517

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Handle: RePEc:eee:gamebe:v:75:y:2012:i:2:p:510-517

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Web page: http://www.elsevier.com/locate/inca/622836

Related research

Keywords: Communication; Information transmission; Correlation; Language;

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References

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  1. Forges, Francoise M, 1986. "An Approach to Communication Equilibria," Econometrica, Econometric Society, vol. 54(6), pages 1375-85, November.
  2. Forges, Francoise, 1990. "Universal Mechanisms," Econometrica, Econometric Society, vol. 58(6), pages 1341-64, November.
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  9. Myerson, Roger B., 1982. "Optimal coordination mechanisms in generalized principal-agent problems," Journal of Mathematical Economics, Elsevier, vol. 10(1), pages 67-81, June.
  10. FORGES , Françoise, 1993. "Five Legitimate Definitions of Correlated Equilibrium in Games with Incomplete Information," CORE Discussion Papers 1993009, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
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  13. Robert J. Aumann & Sergiu Hart, 2002. "Long Cheap Talk," Discussion Paper Series dp284, The Center for the Study of Rationality, Hebrew University, Jerusalem, revised Nov 2002.
  14. Andreas Blume & Oliver Board & Kohei Kawamura, 2007. "Noisy Talk," ESE Discussion Papers 167, Edinburgh School of Economics, University of Edinburgh.
  15. Ivanov, Maxim, 2010. "Communication via a strategic mediator," Journal of Economic Theory, Elsevier, vol. 145(2), pages 869-884, March.
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  17. Cotter, Kevin D., 1991. "Correlated equilibrium in games with type-dependent strategies," Journal of Economic Theory, Elsevier, vol. 54(1), pages 48-68, June.
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