Two or more players are required to divide up a set of indivisible items that they can rank from best to worst. They may, as well, be able to indicate preferences over subsets, or packages, of items. The main criteria used to assess the fairness of a division are efficiency (Pareto-optimality) and envy-freeness. Other criteria are also suggested, including a Rawlsian criterion that the worst-off player be made as well off as possible and a scoring procedure, based on the Borda count, that helps to render allocations as equal as possible. Eight paradoxes, all of which involve unexpected conflicts among the criteria, are described and classified into three categories, reflecting (1) incompatibilities between efficiency and envy-freeness, (2) the failure of a unique efficient and envy-free division to satisfy other criteria, and (3) the desirability, on occasion, of dividing up items unequally. While troublesome, the paradoxes also indicate opportunities for achieving fair division, which will depend on the fairness criteria one deems important and the trade-offs one considers acceptable.
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Paper provided by C.V. Starr Center for Applied Economics, New York University in its series Working Papers with number
00-13.
Find related papers by JEL classification: D61 - Microeconomics - - Welfare Economics - - - Allocative Efficiency; Cost-Benefit Analysis D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement
References listed on IDEAS Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
Brams, S.J. & Kilgour, D.M., 1999.
"Competitive Fair Division,"
Working Papers
99-05, C.V. Starr Center for Applied Economics, New York University.
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Brams, S. J. & Eldelman, P. H. & Fishburn, P. C., 2000.
"Fair Division of Indivisible Items,"
Working Papers
00-15, C.V. Starr Center for Applied Economics, New York University.
[Downloadable!]
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