Essential equilibria in normal-form games
نویسنده
چکیده
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. © 2009 Elsevier Inc. All rights reserved. JEL classification: C72
منابع مشابه
On essential, (strictly) perfect equilibria
It is known that generic games within certain collections of infinite-action normal-form games have only essential equilibria. We point to a difficulty in showing that essential equilibria in generic games are (strictly) perfect, and we identify collections of games whose generic members have only essential and (strictly) perfect equilibria. © 2014 Elsevier B.V. All rights reserved.
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ورودعنوان ژورنال:
- J. Economic Theory
دوره 145 شماره
صفحات -
تاریخ انتشار 2010