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The impossibility of extending random dictatorship to weak preferences

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  • Brandl, Florian
  • Brandt, Felix
  • Suksompong, Warut

Abstract

Random dictatorship has been characterized as the only social decision scheme that satisfies efficiency and strategyproofness when individual preferences are strict. We show that no extension of random dictatorship to weak preferences satisfies these properties, even when significantly weakening the required degree of strategyproofness.

Suggested Citation

  • Brandl, Florian & Brandt, Felix & Suksompong, Warut, 2016. "The impossibility of extending random dictatorship to weak preferences," Economics Letters, Elsevier, vol. 141(C), pages 44-47.
    • Handle: RePEc:eee:ecolet:v:141:y:2016:i:c:p:44-47
    DOI: 10.1016/j.econlet.2016.01.028
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    References listed on IDEAS

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    Cited by:

    1. Aziz, Haris & Luo, Pang & Rizkallah, Christine, 2017. "Incompatibility of efficiency and strategyproofness in the random assignment setting with indifferences," Economics Letters, Elsevier, vol. 160(C), pages 46-49.
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    3. Aziz, Haris & Brandl, Florian & Brandt, Felix & Brill, Markus, 2018. "On the tradeoff between efficiency and strategyproofness," Games and Economic Behavior, Elsevier, vol. 110(C), pages 1-18.

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    More about this item

    Keywords

    Random dictatorship; Stochastic dominance; Pareto-efficiency; Strategyproofness;
    All these keywords.

    JEL classification:

    • C6 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling
    • D7 - Microeconomics - - Analysis of Collective Decision-Making
    • D8 - Microeconomics - - Information, Knowledge, and Uncertainty

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