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Strategy-proofness on restricted separable domains

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  • Ricardo Martínez
  • Bernardo Moreno

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

Suggested Citation

  • Ricardo Martínez & Bernardo Moreno, 2013. "Strategy-proofness on restricted separable domains," Review of Economic Design, Springer;Society for Economic Design, vol. 17(4), pages 323-333, December.
    • Handle: RePEc:spr:reecde:v:17:y:2013:i:4:p:323-333
    DOI: 10.1007/s10058-013-0149-7
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    References listed on IDEAS

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    More about this item

    Keywords

    Preference aggregation; Strategy-proofness; Tops-onlyness; Voting by committees; D63; D70;
    All these keywords.

    JEL classification:

    • D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement
    • D70 - Microeconomics - - Analysis of Collective Decision-Making - - - General

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