Abstract
In this paper, we define a modification of the Shapley value for the model of TU games with a priori unions. We provide two characterizations of this value and a new characterization of the Banzhaf–Owen coalitional value.
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Notes
A simple game (N,v) is a TU game such that v(S)=0 or v(S)=1 for all S⊆N; v(S)≤v(T) for all S⊆T⊆N; and v(N)=1.
A minimal winning coalition is a coalition S⊆N, which satisfies that v(S)=1 and v(T)=0 for all T⊆̷S. Note that a simple game can be interpreted as a pair (N,MW), where MW is the set of minimal winning coalitions.
The notion of indivisible player has been introduced by Alonso-Meijide et al. (2012). A player a is indivisible when there is no pair of players i and j such that {i,j}=a.
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Acknowledgements
Financial support from Ministerio de Ciencia y Tecnología and FEDER through grants MTM2011-27731-C03-02 and ECO2011-23460 is gratefully acknowledged. The authors are also very grateful for the interesting suggestions given by three anonymous referees.
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Alonso-Meijide, J.M., Casas-Méndez, B., González-Rueda, A.M. et al. Axiomatic of the Shapley value of a game with a priori unions. TOP 22, 749–770 (2014). https://doi.org/10.1007/s11750-013-0298-4
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DOI: https://doi.org/10.1007/s11750-013-0298-4