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On top coalitions, common rankings, and semistrict core stability

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  • Dimitrov, Dinko

    (Center for Mathematical Economics, Bielefeld University)

Abstract

The top coalition property of Banerjee et al. (2001) and the common ranking property of Farrell and Scotchmer (1988) are sufficient conditions for core stability in hedonic games. We introduce the semistrict core as a stronger stability concept than the core, and show that the top coalition property guarantees the existence of semistrictly core stable coalition structures. Moreover, for each game satisfying the common ranking property, the core and the semistrict core coincide.

Suggested Citation

  • Dimitrov, Dinko, 2011. "On top coalitions, common rankings, and semistrict core stability," Center for Mathematical Economics Working Papers 377, Center for Mathematical Economics, Bielefeld University.
    • Handle: RePEc:bie:wpaper:377
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    References listed on IDEAS

    as
    1. Bogomolnaia, Anna & Jackson, Matthew O., 2002. "The Stability of Hedonic Coalition Structures," Games and Economic Behavior, Elsevier, vol. 38(2), pages 201-230, February.
    2. Tayfun Sönmez & Suryapratim Banerjee & Hideo Konishi, 2001. "Core in a simple coalition formation game," Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 18(1), pages 135-153.
    3. Dinko Dimitrov & Claus-Jochen Haake, 2006. "Government versus Opposition: Who Should be Who in the 16th German Bundestag?," Journal of Economics, Springer, vol. 89(2), pages 115-128, November.
    4. Shapley, Lloyd & Scarf, Herbert, 1974. "On cores and indivisibility," Journal of Mathematical Economics, Elsevier, vol. 1(1), pages 23-37, March.
    5. Dreze, J H & Greenberg, J, 1980. "Hedonic Coalitions: Optimality and Stability," Econometrica, Econometric Society, vol. 48(4), pages 987-1003, May.
    6. Georg Kirchsteiger & Clemens Puppe, 1997. "On the Formation of Political Coalitions," Journal of Institutional and Theoretical Economics (JITE), Mohr Siebeck, Tübingen, vol. 153(2), pages 293-293, June.
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    Cited by:

    1. Dimitrov, Dinko & Haake, Claus-Jochen, 2006. "Coalition Formation in Simple Games: The Semistrict Core," Coalition Theory Network Working Papers 12175, Fondazione Eni Enrico Mattei (FEEM).
    2. Dimitrov, Dinko & Haake, Claus-Jochen, 2011. "Coalition formation in simple Games. the semistrict core," Center for Mathematical Economics Working Papers 378, Center for Mathematical Economics, Bielefeld University.

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    More about this item

    Keywords

    Hedonic games; Semistrict core; Coalition formation; Top coalition property; Common ranking property;
    All these keywords.

    JEL classification:

    • D7 - Microeconomics - - Analysis of Collective Decision-Making
    • C7 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory

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