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Rank-dominant strategy and sincere voting

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  • Yasunori Okumura

    (TUMSAT)

Abstract

This study considers a voting rule wherein each player sincerely votes when he/she has no information about the preferences of the other players. We introduce the concept of rank-dominant strategies to discuss the situation where a player is completely ignorant in the preferences of the other players and decision theoretic justification of the concept. We show that under the plurality voting rule with the equal probability random tie-breaking, sincere voting is always the rank-dominant strategy of each voter. We also discuss other scoring rules and show that sincere voting may not be a rank-dominant strategy of a voter even with the equal probability random tie-breaking.

Suggested Citation

  • Yasunori Okumura, 2021. "Rank-dominant strategy and sincere voting," Theory and Decision, Springer, vol. 90(1), pages 117-145, February.
    • Handle: RePEc:kap:theord:v:90:y:2021:i:1:d:10.1007_s11238-020-09771-3
    DOI: 10.1007/s11238-020-09771-3
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    References listed on IDEAS

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