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Rationalizable Implementation of Social Choice Correspondences (published in GAMES AND ECONOMIC BEHAVIOR)

作者 鄭瑞泰
摘要 A (deterministic) social choice correspondence F, mapping states into outcomes, is rationalizably implementable provided that there exists a mechanism such that the support of its set of rationalizable outcomes coincides with the set of outcomes recommended by F. We provide a necessary condition for rationalizable implementation, called r-monotonicity. This condition, when combined with some other auxiliary conditions, is also sucient when there are at least three agents.