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Endogenous Coalition Formation in Contests

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This paper analyzes coalition formation in a model of contests with linear costs. Agents first form groups and then compete by investing resources. Coalitions fight for prizes that are assumed to be subject to rivalry, so their value is non-increasing in the size of the group. This formulation encompasses as particular cases some models proposed in the rent-seeking literature. We show that the formation of groups generates positive spillovers and analyze two classes of games of coalition formation. A contest among individual agents is the only stable outcome when individual defections leave the rest of the group intact. More concentrated coalition structures, including the grand coalition, are stable when groups collapse after a defection, provided that rivalry is not too strong. Results in a sequential game of coalition formation suggest that there exists a non-monotonic relationship between the level of underlying rivalry and the level of social conflict.

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Bibliographic Info

Paper provided by Edinburgh School of Economics, University of Edinburgh in its series ESE Discussion Papers with number 158.

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Length: 28
Date of creation: May 2007
Date of revision:
Handle: RePEc:edn:esedps:158

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Keywords: Contests; coalition formation; conflict; rivalry.;

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Citations

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Cited by:
  1. Guofu Tan & Ruqu Wang, 2010. "Coalition formation in the presence of continuing conflict," International Journal of Game Theory, Springer, vol. 39(1), pages 273-299, March.
  2. Epstein, Gil S. & Mealem, Yosef & Nitzan, Shmuel, 2011. "Political culture and discrimination in contests," Journal of Public Economics, Elsevier, vol. 95(1), pages 88-93.
  3. Vincent Anesi, 2007. "Moral Hazard and Free Riding in Collective Action," Discussion Papers 2007-04, The Centre for Decision Research and Experimental Economics, School of Economics, University of Nottingham.
  4. Herbst, Luisa & Konrad, Kai A. & Morath, Florian, 2013. "Endogenous group formation in experimental contests," Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems 419, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.
  5. Matthew J. Baker & Erwin H. Bulte, 2005. "Kings and Vikings: On the Dynamics of Competitive Agglomeration," Departmental Working Papers 11, United States Naval Academy Department of Economics.
  6. Herbst, Luisa & Konrad, Kai A. & Morath, Florian, 2013. "Endogenous group formation in experimental contests," Discussion Papers, Research Unit: Economics of Change SP II 2013-301, Social Science Research Center Berlin (WZB).

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