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Strategy-Proofness and the Tops-Only Property

  • JOHN A. WEYMARK

A social choice function satisfies the tops-only property if the chosen alternative only depends on each person's report of his most-preferred alternatives on the range of this function. On many domains, strategy-proofness implies the tops-only property provided that the range of the social choice function satisfies some regularity condition. The existing proofs of this result are model specific. In this paper, a general proof strategy is proposed for showing that a strategy-proof social choice function satisfies the tops-only property when everyone has the same set of admissible preferences. Copyright 2008 Blackwell Publishing, Inc..

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Article provided by Association for Public Economic Theory in its journal Journal of Public Economic Theory.

Volume (Year): 10 (2008)
Issue (Month): 1 (02)
Pages: 7-26

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Handle: RePEc:bla:jpbect:v:10:y:2008:i:1:p:7-26
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