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Supermodular Social Games

Author

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  • Ludovic Renou

    (School of Economics, University of Adelaide)

Abstract

A social game is a generalization of a strategic-form game, in which not only the payoff of each player depends upon the strategies chosen by their opponents, but also their set of admissible strategies. Debreu (1952) proves the existence of a Nash equilibrium in social games with continuous strategy spaces. Recently, Polowczuk and Radzik (2004) have proposed a discrete counterpart of Debreu's theorem for two-person social games satisfying some ''convexity properties''. In this note, we define the class of supermodular social games and give an existence theorem for this class of games.

Suggested Citation

  • Ludovic Renou, 2005. "Supermodular Social Games," School of Economics and Public Policy Working Papers 2005-02, University of Adelaide, School of Economics and Public Policy.
    • Handle: RePEc:adl:wpaper:2005-02
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    File URL: https://media.adelaide.edu.au/economics/papers/doc/wp2005-02.pdf
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    References listed on IDEAS

    as
    1. Milgrom, Paul & Roberts, John, 1990. "Rationalizability, Learning, and Equilibrium in Games with Strategic Complementarities," Econometrica, Econometric Society, vol. 58(6), pages 1255-1277, November.
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    More about this item

    Keywords

    strategic-form games; social games; supermodularity; Nash equilibrium; existence;
    All these keywords.

    JEL classification:

    • C7 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory

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