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Restricted Environments and Incentive Compatibility in Interdependent Values Models

Salvador Barberà (), Dolors Berga and Bernardo Moreno ()

No 1024, Working Papers from Barcelona Graduate School of Economics

Abstract: We study the possibility of designing satisfactory ex post incentive compatible single valued direct mechanisms in interdependent values environments, characterized by the set of agents' type profiles and by their induced preference profiles. For environments that we call knit and strict, only constant mechanisms can be ex post (or interim) incentive compatible. For those called partially knit, ex post incentive compatibility extends to groups, and strategy- proofness implies strong group strategy-proofness in private values environments. The results extend to mechanisms operating on non-strict domains under an additional requirement of respectfulness. We discuss voting, assignment and auctions environments where our theorems apply.

Keywords: mechanisms; ex post incentive compatibility; ex post group incentive compatibility; strategy-proofness; strong group strategy-proofness; knit environments; respectfulness (search for similar items in EconPapers)
JEL-codes: C78 D71 D78 (search for similar items in EconPapers)
Date: 2018-03
New Economics Papers: this item is included in nep-des, nep-gth and nep-mic
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