Approximate Cores of Games and Economies with Clubs

Alexander Kovalenkov () and Myrna Wooders

No 1790, Econometric Society World Congress 2000 Contributed Papers from Econometric Society

Abstract: This presentation focuses on new approachs to large games introduced in five papers by the authors (one with the same title as this abstract). In a new framework of parameterised collections of games with and without side payments, we provide nonemptiness of approximate core, a law of scarcity, and convergence results. The parameters bound (a) the number of approximate types of players and the size of the approximation and (b) the size of nearly effective groups of players and their distance from exact effectiveness. Our nonemptiness theorems are based on a new notion of partition-balanced profiles and approximately partition-balanced profiles. Our convergence results provide a new sort of application of standard theorems from linear programming. The results are applied to a model of an economy with clubs. In contrast to the extant literature, our approach allows widespread externalities -- that is, the payoffs to members of a club may depend on the economy in which the club is situated.

Date: 2000-08-01
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Related works:
Journal Article: Approximate cores of games and economies with clubs (2003)
Working Paper: Approximate cores of games and economies with clubs (2002)
Working Paper: APPROXIMATE CORES OF GAMES AND ECONOMIES WITH CLUBS (2002)
Working Paper: Approximate cores of games and economies with clubs (2001)
Working Paper: APPROXIMATE CORES OF GAMES AND ECONOMIES WITH CLUBS (1999)
Working Paper: Approximate cores of games and economies with clubs (1998)
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