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Coalition formation under power relations


  • Razin, Ronny

    () (Department of Economics, London School of Economics)

  • Piccione, Michele

    () (Department of Economics, London School of Economics)


We analyze the structure of a society driven by power relations. Our model has an exogenous power relation over the set of coalitions of agents. Agents determine the social order by forming coalitions. The power relations determine the ranking of agents in society for any social order. We study a cooperative game in partition function form and introduce a solution concept, the stable social order, which exists and includes the core. We investigate a refinement, the strongly stable social order, which incorporates a notion of robustness to variable power relations. We provide a complete characterization of strongly stable social orders.

Suggested Citation

  • Razin, Ronny & Piccione, Michele, 2009. "Coalition formation under power relations," Theoretical Economics, Econometric Society, vol. 4(1), March.
  • Handle: RePEc:the:publsh:447

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    References listed on IDEAS

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    Cited by:

    1. Barberà, Salvador & Beviá, Carmen & Ponsatí, Clara, 2015. "Meritocracy, egalitarianism and the stability of majoritarian organizations," Games and Economic Behavior, Elsevier, vol. 91(C), pages 237-257.
    2. Kevin Sheedy & Bernardo Guimaraes, 2011. "A model of equilibrium institutions," 2011 Meeting Papers 49, Society for Economic Dynamics.
    3. repec:spr:jogath:v:46:y:2017:i:2:d:10.1007_s00182-016-0538-6 is not listed on IDEAS

    More about this item


    Power; coalition formation; stability;

    JEL classification:

    • D0 - Microeconomics - - General
    • D7 - Microeconomics - - Analysis of Collective Decision-Making


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