Strategy-proofness on restricted separable domains

Ricardo Martinez () and Bernardo Moreno ()

Review of Economic Design, 2013, vol. 17, issue 4, 323-333

Abstract: We study a problem in which a group of voters must decide which candidates are elected from a set of alternatives. The voters’ preferences on the combinations of elected candidates are represented by linear orderings. We propose a family of restrictions of the domain of separable preferences. These subdomains are generated from a partition that identifies the friends, enemies and unbiased candidates for each voter. We characterize the family of social choice functions that satisfy strategy-proofness and tops-onlyness properties on each of the subdomains. We find that these domain restrictions are not accompanied by an increase in the family of social choice functions satisfying the two properties. Copyright Springer-Verlag Berlin Heidelberg 2013

Keywords: Preference aggregation; Strategy-proofness; Tops-onlyness; Voting by committees; D63; D70 (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1007/s10058-013-0149-7

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