Nash Implementation and Uncertain Renegotiation

Pablo Amoros

No E2003/27, Economic Working Papers at Centro de Estudios Andaluces from Centro de Estudios Andaluces

Abstract: This paper studies Nash implementation when the outcomes of the mechanism can be renegotiated among the agents but the planner does not know the renegotiation function that they will use. We characterize the social objectives that can be implemented in Nash equilibrium when the same mechanism must work for every admissible renegotiation function. The constrained Walrasian correspondence, the core correspondence, and the Pareto-efficient and envy-free correspondence satisfy the necessary and sufficient conditions for this form of implementation if and only if freedisposal of the commodities is allowed. The uniform rule, on the other hand, is not Nash implementable for some admissible renegotiations functions.

Keywords: Implementation theory; Nash equilibrium; renegotiation function. (search for similar items in EconPapers)
JEL-codes: C70 D78 (search for similar items in EconPapers)
Pages: 23 pages
Date: 2003
New Economics Papers: this item is included in nep-evo and nep-ind
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Journal Article: Nash implementation and uncertain renegotiation (2004)
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