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Essential equilibria in normal-form games

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  • Carbonell-Nicolau, Oriol

Abstract

A Nash equilibrium x of a normal-form game G is essential if any perturbation of G has an equilibrium close to x. Using payoff perturbations, we show that for games that are generic in the set of compact, quasiconcave, and generalized payoff secure games with upper semicontinuous sum of payoffs, all equilibria are essential. Some variants of this result are also established.

Suggested Citation

  • Carbonell-Nicolau, Oriol, 2010. "Essential equilibria in normal-form games," Journal of Economic Theory, Elsevier, vol. 145(1), pages 421-431, January.
    • Handle: RePEc:eee:jetheo:v:145:y:2010:i:1:p:421-431
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    References listed on IDEAS

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