Efficient reallocation of indivisible resources: Pair-efficiency versus Pareto-efficiency

Pinaki Mandal

Journal of Mathematical Economics, 2025, vol. 119, issue C

Abstract: In the object reallocation problem, achieving Pareto-efficiency is desirable, but may be too demanding for implementation purposes. In contrast, pair-efficiency, which is the minimal efficiency requirement, is more suitable. Despite being a significant relaxation, however, pair-efficiency ensures Pareto-efficiency for any strategy-proof and individually rational rule when agents’ preferences are unrestricted.

Keywords: Object reallocation problem; Single-peaked preferences; Single-dipped preferences; Pair-efficiency; Pareto-efficiency (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:mateco:v:119:y:2025:i:c:s0304406825000667

DOI: 10.1016/j.jmateco.2025.103149

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