An Axiomatization of Harsanyi's Nontransferable Utility Solution

Sergiu Hart

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A set of axioms is proposed, which uniquely characterize the Harsanyi [1963] soluton for nontransferable utility (NTU) games. These axioms appear formally identical to those of Aumann [1985] for the Shapley ("λ-transfer") NTU value; the difference lies in the range of the two solutions. Further characterizations and comparisons between these two solution concepts are then presented.