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Strategy-proof group selection under single-peaked preferences over group size

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  • Yan Long

    (New York University Abu Dhabi)

Abstract

One group has to be selected among a set of agents. Agents have preferences over the size of the group if they are selected, and preferences over size as well as the “stand-outside” option are single-peaked. Two classes of efficient, individually rational and strategy-proof rules, are presented. The proposingrules allow agents to either maintain or shrink the group size following a fixed priority and are characterized by group strategy-proofness. The voting rules enlarge the group size in each voting round and achieve at least half of the maximal group size compatible with individual rationality.

Suggested Citation

  • Yan Long, 2019. "Strategy-proof group selection under single-peaked preferences over group size," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 68(3), pages 579-608, October.
    • Handle: RePEc:spr:joecth:v:68:y:2019:i:3:d:10.1007_s00199-018-1135-7
    DOI: 10.1007/s00199-018-1135-7
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    Cited by:

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    2. Bhaskar Dutta & Anirban Kar & John A. Weymark, 2022. "Strategy-proof club formation with indivisible club facilities," Review of Economic Design, Springer;Society for Economic Design, vol. 26(3), pages 261-284, September.

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    More about this item

    Keywords

    Group selection; Group size; Single-peaked preference; Strategy-proofness;
    All these keywords.

    JEL classification:

    • D71 - Microeconomics - - Analysis of Collective Decision-Making - - - Social Choice; Clubs; Committees; Associations
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • D47 - Microeconomics - - Market Structure, Pricing, and Design - - - Market Design

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