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On the informational basis of social choice with the evaluation of opportunity sets

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  • Yukinori Iwata

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Abstract

This paper examines the informational basis of social choice in a broader conceptual framework. Formal welfarism is a social evaluation in which any information other than the well-being of individuals is excluded, where the notion of individual well-being can be conceived in various ways. We propose a notion of individual well-being defined over pairs of outcomes and opportunity sets from which they are chosen. The concept of consequentialism and non-consequentialism is naturally introduced by restricting individual evaluation functions over the pairs of outcomes and opportunity sets. The two formal welfarism theorems provide axiomatic characterizations of formal welfarism in the extended framework. We show that the presence of a consequentialist or a non-consequentialist affects the validity of the two formal welfarism theorems in the extended framework. Copyright Springer-Verlag Berlin Heidelberg 2014

Suggested Citation

  • Yukinori Iwata, 2014. "On the informational basis of social choice with the evaluation of opportunity sets," Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 43(1), pages 153-172, June.
  • Handle: RePEc:spr:sochwe:v:43:y:2014:i:1:p:153-172
    DOI: 10.1007/s00355-013-0764-9
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    References listed on IDEAS

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    1. Kevin W. S. Roberts, 1980. "Interpersonal Comparability and Social Choice Theory," Review of Economic Studies, Oxford University Press, vol. 47(2), pages 421-439.
    2. Suzumura, Kotaro & Xu, Yongsheng, 2001. "Characterizations of Consequentialism and Nonconsequentialism," Journal of Economic Theory, Elsevier, vol. 101(2), pages 423-436, December.
    3. Georges Bordes & Peter J. Hammond & Michel Le Breton, 2005. "Social Welfare Functionals on Restricted Domains and in Economic Environments," Journal of Public Economic Theory, Association for Public Economic Theory, vol. 7(1), pages 1-25, February.
    4. Kevin W. S. Roberts, 1980. "Social Choice Theory: The Single-profile and Multi-profile Approaches," Review of Economic Studies, Oxford University Press, vol. 47(2), pages 441-450.
    5. Claude D'Aspremont & Louis Gevers, 1977. "Equity and the Informational Basis of Collective Choice," Review of Economic Studies, Oxford University Press, vol. 44(2), pages 199-209.
    6. Marc Fleurbaey, 2003. "On the informational basis of social choice," Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 21(2), pages 347-384, October.
    7. Suzumura, Kotaro & Xu, Yongsheng, 2003. "Consequences, opportunities, and generalized consequentialism and non-consequentialism," Journal of Economic Theory, Elsevier, vol. 111(2), pages 293-304, August.
    8. Weymark, John A., 1998. "Welfarism on economic domains1," Mathematical Social Sciences, Elsevier, vol. 36(3), pages 251-268, December.
    9. Sen, Amartya K, 1979. "Personal Utilities and Public Judgements: Or What's Wrong with Welfare Economics?," Economic Journal, Royal Economic Society, vol. 89(355), pages 537-558, September.
    10. Peter J. Hammond, 1999. "Roberts' Weak Welfarism Theorem: A Minor Correction," Working Papers 99021, Stanford University, Department of Economics.
    11. Iwata, Yukinori, 2007. "A variant of non-consequentialism and its characterization," Mathematical Social Sciences, Elsevier, vol. 53(3), pages 284-295, May.
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    Cited by:

    1. Antoinette Baujard & Muriel Gilardone, 2017. "Sen is not a capability theorist," Journal of Economic Methodology, Taylor & Francis Journals, vol. 24(1), pages 1-19, January.

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