Separable Preferences, Strategyproofness, and Decomposability

Michel Le Breton and Arunava Sen

Econometrica, 1999, vol. 67, issue 3, 605-628

Abstract: The authors consider strategyproof social choice functions defined over product domains. If preferences are strict orderings and separable, then strategyproof social choice functions must be decomposable provided that the domain of preferences is rich. The authors provide several applications of this result, including a characterization of the libertarian social choice function.

Date: 1999
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Working Paper: Separable preferences, strategyproofness, and decomposability (1999)
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