A Social Choice Trade-off Between Alternative Fairness Concepts: Solidarity versus Flexibility
AbstractIn this paper, we define simple measures of two properties that social choice functions may embody in different degrees in public goods environments. First, a measure of solidarity is proposed such that Thomson's (1990) replacement monotonicity property is a particular case in which the full amount of solidarity is required. Secondly, we introduce a measure of the degree of flexibility of a social choice function and prove that a trade-off in Campbell and Kelly's (1993) sense exists between both properties. More solidarity can only be achieved in exchange of less flexibility of the decision rule. When we restrict ourselves to the family of voting schemes called generalized Condorcet winner solutions, introduced by Moulin (1980), we find the exact trade-off and we can easily find the degrees of fulfillment of both properties, which amount to some generalization of the idea of ''qualified majority''.
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Bibliographic InfoPaper provided by Centro de Estudios Andaluces in its series Economic Working Papers at Centro de Estudios Andaluces with number E2003/10.
Length: 31 pages
Date of creation: 2003
Date of revision:
Single-peaked preferences; solidarity; welfare domination under preference replacement;
Find related papers by JEL classification:
- D71 - Microeconomics - - Analysis of Collective Decision-Making - - - Social Choice; Clubs; Committees; Associations
This paper has been announced in the following NEP Reports:
- NEP-ALL-2003-05-15 (All new papers)
- NEP-CDM-2003-05-15 (Collective Decision-Making)
- NEP-POL-2003-05-15 (Positive Political Economics)
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