A Characterization of Maximum Nash Welfare for Indivisible Goods
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Abstract (arXiv)
In the allocation of indivisible goods, the maximum Nash welfare (MNW) rule, which chooses an allocation maximizing the product of the agents' utilities, has received substantial attention for its fairness. We characterize MNW as the only additive welfarist rule that satisfies envy-freeness up to one good. Our characterization holds even in the simplest setting of two agents.
Key facts. Cited by 1 paper in the map (data through 14 Oct 2026). First posted on arXiv 8 Dec 2022.
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