Utilizad este identificador para citar o enlazar este documento: http://hdl.handle.net/2072/259220

On strategy-proofness and the salience of single-peakedness
Massó, Jordi
Chatterji, Shurojit
We consider strategy-proof social choice functions operating on a rich domain of preference profiles. We show that if the social choice function satisfies in addition tops-onlyness, anonymity and unanimity then the preferences in the domain have to satisfy a variant of single-peakedness (referred to as semilattice single-peakedness). We do so by deriving from the social choice function an endogenous partial order (a semilattice) from which the notion of a semilattice single-peaked preference can be defined. We also provide a converse of this main finding. Finally, we show how well-known restricted domains under which nontrivial strategy-proof social choice functions are admissible are semilattice single-peaked domains.
05-2015
Strategy-proofness
Single-peakedness
Anonymity
Unanimity
Top-onlyness
Semilattice
33 - Economia
Elecció social -- Models matemàtics
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30 p.
Documento de trabajo
Universitat Autònoma de Barcelona. Unitat de Fonaments de l'Anàlisi Econòmica
Working papers;952.15
         

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