Quasi-Cores in Bargaining Sets

Ken-Ichi Shimomura

International Journal of Game Theory, 1997, vol. 26, issue 3, 283-302

Abstract: We propose a nonempty-valued subsolution of the Mas-Colell Bargaining Set on the class of TU games satisfying grand coalition zero-monotonicity, a weaker condition than superadditivity, zero-monotonicity and balancedness. The subsolution is a slight modification of the Shapley-Shubik Quasi-Core. The Zhou Bargaining Set is a refinement of the Mas-Colell Bargaining Set. We also give a nonempty-valued subsolution of the Zhou Bargaining Set on the class of all TU games satisfying grand coalition superadditivity, a weaker condition than superadditivity and balancedness. This subsolution is a modification of the Zhou Bargaining Set which is described by excesses. These results are examined for TU games with coalition structures.

Date: 1998-05-19
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