Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/80211 
Year of Publication: 
2007
Series/Report no.: 
Working Paper No. 2007-10
Publisher: 
Brown University, Department of Economics, Providence, RI
Abstract: 
We study the classic implementation problem under the behavioral assumption that agents myopically adjust their actions in the direction of better-responses within a given institution. We offer results both under complete and incomplete information. First, we show that a necessary condition for assymptotically stable implementation is a small variation of (Maskin) monotonicity, which we call quasimonotonicity. Under standard assumptions in economic environments, we also provide a mechanism for Nash implementation which has good dynamic properties if the rule is quasimonotonic. Thus, quasimonotonicity is both necessary and almost sufficient for assymptotically stable implementation. Under incomplete information, incentive compatibility is necessary for any kind of stable implementation in our sense, while Bayesian quasimonotonicity is necessary for assymptotically stable implementation. Both conditions are also essentially sufficient for assymptotically stable implementation. We then tighten the assumptions on preferences and mutation processes and provide mechanisms for stochastically stable implementation under more permissive conditions on social choice rules. – implementation ; bounded rationality ; evolutionary dynamics ; mechanisms
JEL: 
C72
D70
D78
Document Type: 
Working Paper

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