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Another strategy-proofness characterization of majority rule

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  • Powers, Robert C.
  • Wells, Flannery

Abstract

Campbell and Kelly (2015) proved that, for m≥4 alternatives and n≥3 individuals, majority rule is the only social choice function defined on the Condorcet domain that satisfies strategy-proofness, anonymity, and neutrality. They left open the question whether these three properties characterize majority rule when n is a multiple of four and m is equal to three. We prove their characterization does hold in this case and in the process we give another characterization of majority rule.

Suggested Citation

  • Powers, Robert C. & Wells, Flannery, 2023. "Another strategy-proofness characterization of majority rule," Mathematical Social Sciences, Elsevier, vol. 122(C), pages 42-49.
    • Handle: RePEc:eee:matsoc:v:122:y:2023:i:c:p:42-49
    DOI: 10.1016/j.mathsocsci.2023.02.001
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    References listed on IDEAS

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