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Uniqueness of the weights in Harsanyi-type theorems

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  • Massimiliano Amarante

    (Université de Montréal et CIREQ)

Abstract

A necessary and sufficient condition for the uniqueness of the weights in Harsanyi-type aggregation theorems is obtained as an application of Phelps’ theorem on the uniqueness of Hahn–Banach extensions.

Suggested Citation

  • Massimiliano Amarante, 2017. "Uniqueness of the weights in Harsanyi-type theorems," Economic Theory Bulletin, Springer;Society for the Advancement of Economic Theory (SAET), vol. 5(2), pages 175-178, October.
    • Handle: RePEc:spr:etbull:v:5:y:2017:i:2:d:10.1007_s40505-016-0111-2
    DOI: 10.1007/s40505-016-0111-2
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    References listed on IDEAS

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    1. Blackorby, Charles & Donaldson, David & Weymark, John A., 1999. "Harsanyi's social aggregation theorem for state-contingent alternatives1," Journal of Mathematical Economics, Elsevier, vol. 32(3), pages 365-387, November.
    2. John C. Harsanyi, 1955. "Cardinal Welfare, Individualistic Ethics, and Interpersonal Comparisons of Utility," Journal of Political Economy, University of Chicago Press, vol. 63(4), pages 309-309.
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    More about this item

    Keywords

    Harsanyi’s social aggregation theorem; Uniqueness of weights;

    JEL classification:

    • D71 - Microeconomics - - Analysis of Collective Decision-Making - - - Social Choice; Clubs; Committees; Associations

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