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Mechanism design without quasilinearity

Tomoya Kazumura (), Debasis Mishra and Shigehiro Serizawa ()
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Tomoya Kazumura: Department of Industrial Engineering and Economics, Tokyo Institute of Technology

Theoretical Economics, Forthcoming

Abstract: This paper studies a model of mechanism design with transfers where agents' preferences need not be quasilinear. In such a model, (1) we characterize dominant strategy incentive compatible mechanisms using a monotonicity property; (2) we establish a revenue uniqueness result: for every dominant strategy implementable allocation rule, there is a unique payment rule that can implement it; and (3) we show that every dominant strategy incentive compatible, individually rational, and revenue-maximizing mechanism must charge zero payment for the worst alternative (outside option). These results are applicable in a wide variety of problems (single object auction, multiple object auction, public good provision etc.) under suitable richness of type space. In particular, our results are applicable to two important type spaces: (a) type space containing an arbitrarily small perturbation of quasilinear type space and (b) type space containing all positive income effect preferences.

Keywords: Incentive compatibility; individual rationality; monotonicity; non-quasilinear preferences; revenue equivalence (search for similar items in EconPapers)
JEL-codes: D80 D44 D40 (search for similar items in EconPapers)
Date: 2019-09-27
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Working Paper: Mechanism design without quasilinearity (2017) Downloads
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