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Optimality of the uniform rule under single-peaked preferences

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Abstract

Consider the problem of distributing a fixed amount of a divisible resource among agents whose preferences are single-peaked. The uniform rule has been widely characterized under an ordinal utility approach. Instead, in a cardinal utility approach, we show that the uniform rule is the only consistent rule that maximizes the worst-case surplus among strategy-proof and ordinally efficient mechanisms.

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Notes

  1. The worst-case optimal mechanisms in Procaccia and Tennenholtz (2013) are variants of choosing any kth order statistic of agents’ peaks.

  2. The worst-case analysis that adopts an absolute instead of relative measure has been explored in Juarez (2008, 2015) and Moulin and Shenker (2001).

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Correspondence to Ruben Juarez.

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Juarez, R., You, J.S. Optimality of the uniform rule under single-peaked preferences. Econ Theory Bull 7, 27–36 (2019). https://doi.org/10.1007/s40505-018-0141-z

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