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No-Envy, Efficiency, and Collective Rationality

  • Sakamoto, Norihito
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    We consider the problem of a fair collective choice function (fair CCF) which maps each profile of extended preference orderings into the set of fair social states (the set consists of alternatives which are both Pareto efficient and envy-free) when such a set exists. Our main objective is to examine compatibility of fair social choices with collective rationality. We formulate desirable properties of collective rationality, and look for CCFs satisfying them. Next, we show that there is no CCF that satisfies most of the choice-consistency properties and a simple concept of fairness simultaneously. Moreover, we reveal that there exists no collective choice function that selects efficient and envy-free states cannot be rationalized by a social preference relation.

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    Paper provided by Graduate School of Economics, Hitotsubashi University in its series Discussion Papers with number 2011-08.

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    Length: 23 p.
    Date of creation: Aug 2011
    Date of revision:
    Handle: RePEc:hit:econdp:2011-08
    Note: This Version: August, 2011
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    1. M. Fleurbaey & A. Trannoy, 2000. "The Impossibility of a Paretian Egalitarian," THEMA Working Papers 2000-26, THEMA (THéorie Economique, Modélisation et Applications), Université de Cergy-Pontoise.
    2. Goldman, Steven M. & Sussangkarn, Chal, 1978. "On the concept of fairness," Journal of Economic Theory, Elsevier, vol. 19(1), pages 210-216, October.
    3. Diamantaras, Dimitrios & Thomson, William, 1990. "A refinement and extension of the no-envy concept," Economics Letters, Elsevier, vol. 33(3), pages 217-222, July.
    4. Tadenuma, Koichi, 2002. "Efficiency First or Equity First? Two Principles and Rationality of Social Choice," Journal of Economic Theory, Elsevier, vol. 104(2), pages 462-472, June.
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