Linear-efficient-symmetric values and inequality in TU-games

Marc Dubois and Stéphane Mussard ()
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Marc Dubois: UMay - Université de Mayotte (UMay)
Stéphane Mussard: CHROME - Détection, évaluation, gestion des risques CHROniques et éMErgents (CHROME) - Nîmes Université - UNIMES - Nîmes Université

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Abstract: This paper introduces a dominance criterion that determines whether a TU-game is less unequal than another. A game is derived from another by non-void sequences of inequality-reducing transfers of worth between coalitions of equal size if and only if the resulting game is less unequal in the Lorenz sense. The paper also measures payoff inequality among players (for a TU-game) through the Lorenz criterion. When a distribution (allocation) of payoff is issued from another by non-void sequences of inequality-reducing transfers of payoff between players, the resulting distribution of payoff is less unequal according to the Lorenz criterion (and conversely). It is shown that any linear-efficient-symmetric value, being invariant and separable under worth transfers and satisfying a fair treatment axiom, converts an inequality-reduction in TU-games into a decrease in payoff inequality among players.

Keywords: Dominance de Lorenz; Analyse fonctionelle; Microéconomie; Théorie des jeux; Lorenz dominance; Functional analysis; Microeconomics; Game theory (search for similar items in EconPapers)
Date: 2026-03-18
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Published in Theory and Decision, 2026, ⟨10.1007/s11238-026-10129-4⟩

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-05654960

DOI: 10.1007/s11238-026-10129-4

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