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Clique games: a family of games with coincidence between the nucleolus and the Shapley value

Author

Listed:
  • Christian Trudeau

    () (Department of Economics, University of Windsor)

  • Juan Vidal-Puga

    () (Research Group of Economic Analysis and Departamento de Estatistica e IO, Universidade de Vigo)

Abstract

We introduce a new family of cooperative games for which there is coincidence between the nucleolus and the Shapley value. These so-called clique games are such that players are divided into cliques, with the value created by a coalition linearly increasing with the number of agents belonging to the same clique. Agents can belong to multiple cliques, but for a pair of cliques, at most a single agent belong to their intersection. Finally, if two players do not belong to the same clique, there is at most one way to link the two players through a chain of players, with any two adjacent players in the chain belonging to a common clique. We provide multiple examples for clique games, chief among them minimum cost spanning tree problems. This allows us to obtain new correspondence results between the nucleolus and the Shapley value, as well as other cost sharing methods for the minimum cost spanning tree problem.

Suggested Citation

  • Christian Trudeau & Juan Vidal-Puga, 2017. "Clique games: a family of games with coincidence between the nucleolus and the Shapley value," Working Papers 1705, University of Windsor, Department of Economics.
  • Handle: RePEc:wis:wpaper:1705
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    References listed on IDEAS

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    Cited by:

    1. Elena Iñarra & Roberto Serrano & Ken-Ichi Shimomura, 2020. "The Nucleolus, the Kernel, and the Bargaining Set: An Update," Revue économique, Presses de Sciences-Po, vol. 71(2), pages 225-266.
    2. José-Manuel Giménez-Gómez & Josep E Peris & Begoña Subiza, 2020. "An egalitarian approach for sharing the cost of a spanning tree," PLOS ONE, Public Library of Science, vol. 15(7), pages 1-14, July.

    More about this item

    Keywords

    nucleolus; Shapley value; clique; minimum cost spanning tree.;

    JEL classification:

    • C71 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Cooperative Games
    • D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement

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