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The supercore for normal-form games

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  • Inarra, Elena
  • Concepcion Larrea, M.
  • Saracho, Ana I.

Abstract

We study the supercore of a system derived from a normal form game. For the case of a finite game with pure strategies, we define a sequence of games and show that the supercore of that system coincides with the set of Nash equilibrium strategy profiles of the last game in the sequence. This result is illustrated with the characterization of the supercore for the n-person prisoners’ dilemma. With regard to the mixed extension of a normal form game, we show that the set of Nash equilibrium profiles coincides with the supercore for games with a finite number of Nash equilibria. For games with an infinite number of Nash equilibria this need not be no longer the case. Yet, it is not difficult to find a binary relation which guarantees the coincidence of these two sets.
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  • Inarra, Elena & Concepcion Larrea, M. & Saracho, Ana I., 2007. "The supercore for normal-form games," Journal of Economic Theory, Elsevier, vol. 132(1), pages 530-538, January.
    • Handle: RePEc:eee:jetheo:v:132:y:2007:i:1:p:530-538
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    • Iñarra García, María Elena & Larrea Jaurrieta, María Concepción & Saracho de la Torre, Ana Isabel, 2003. "The Supercore for Normal Form Games," IKERLANAK info:eu-repo/grantAgreeme, Universidad del País Vasco - Departamento de Fundamentos del Análisis Económico I.

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    1. Inarra, E. & Larrea, C. & Saracho, A., 2010. "Deriving Nash equilibria as the supercore for a relational system," Journal of Mathematical Economics, Elsevier, vol. 46(2), pages 141-147, March.
    2. Bloch, Francis & van den Nouweland, Anne, 2021. "Myopic and farsighted stable sets in 2-player strategic-form games," Games and Economic Behavior, Elsevier, vol. 130(C), pages 663-683.
    3. Luo, Xiao, 2009. "The foundation of stability in extensive games with perfect information," Journal of Mathematical Economics, Elsevier, vol. 45(12), pages 860-868, December.

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