Strategy-proof compromises


Postl, P., 2011. Strategy-proof compromises. The B.E. Journal of Theoretical Economics, 11 (1), 20.

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    We study strategy-proof decision rules in the variant of the canonical public good model proposed by Borgers and Postl (2009). In this setup, we fully characterize the set of budget balanced strategy-proof deterministic mechanisms, which are simple threshold rules. For smooth probabilistic mechanisms, we provide a necessary and sufficient condition for dominant strategy implementation. When allowing for discontinuities in the mechanism, our necessary condition remains valid, but additional conditions must hold for sufficiency. We also show that, among ex post efficient decision rules, only dictatorial ones are strategy-proof. While familiar in spirit, this result is not the consequence of any known result in the literature.


    Item Type Articles
    CreatorsPostl, P.
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    Uncontrolled Keywordscompromise,public good provision,dominant strategy implementation,strategyproof,dictatorship
    DepartmentsFaculty of Humanities & Social Sciences > Economics
    Publisher StatementPostl_BEJTE_2011.pdf: The final publication is available at
    ID Code31975


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