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Efficiency and converse reduction-consistency in collective choice

Author

Listed:
  • Arthur Robson

    (Simon Fraser University)

  • Tiemen Woutersen

    (Johns Hopkins University)

Abstract

We consider the problem of selecting a subset of a feasible set over which each agent has a strict preference. We propose an invariance property, converse reduction-consistency, which is the converse of reduction-consistency introduced by Yeh (2006), and study its implications. Our results are two characterizations of the Pareto rule: (1) it is the only rule satisfying efficiency and converse reduction-consistency and (2) it is the only rule satisfying one-agent efficiency, converse reduction-consistency, and reduction-consistency.

Suggested Citation

  • Arthur Robson & Tiemen Woutersen, 2007. "Efficiency and converse reduction-consistency in collective choice," Economics Bulletin, AccessEcon, vol. 4(28), pages 1-7.
    • Handle: RePEc:ebl:ecbull:eb-07d70008
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    More about this item

    Keywords

    consistency converse consistency efficiency Pareto rule social choice correspondences.;

    JEL classification:

    • D7 - Microeconomics - - Analysis of Collective Decision-Making
    • C7 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory

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