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Stability and venture structures in multilateral matching

Author

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  • Bando, Keisuke
  • Hirai, Toshiyuki

Abstract

We consider a multilateral matching market, where two or more agents can engage in a joint venture via multilateral contracts. Possible joint ventures are exogenously given. We study four stability concepts: stability, weak setwise stability, strong group stability, and setwise stability. We characterize the structure of possible joint ventures that guarantee the efficiency and existence of outcomes satisfying these stability concepts under general preference profiles. Specifically, we show that any stable outcome, weakly setwise stable outcome, and setwise stable outcome are efficient for any preference profile if and only if the structure of possible joint ventures satisfies a condition called the acyclicity. We also show that the acyclicity is a necessary and sufficient condition for the existence of a stable outcome and strongly group stable outcome for any preference profile. Moreover, we show that a weaker condition called the no-crossing property is a necessary and sufficient condition for the existence of a weakly setwise stable outcome and setwise stable outcome for any preference profile.

Suggested Citation

  • Bando, Keisuke & Hirai, Toshiyuki, 2021. "Stability and venture structures in multilateral matching," Journal of Economic Theory, Elsevier, vol. 196(C).
    • Handle: RePEc:eee:jetheo:v:196:y:2021:i:c:s0022053121001095
    DOI: 10.1016/j.jet.2021.105292
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    References listed on IDEAS

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    Cited by:

    1. Sihua Ding & Marcin Dziubiński & Sanjeev Goyal, 2021. "Clubs and Networks," Working Papers 20210073, New York University Abu Dhabi, Department of Social Science, revised Dec 2021.
    2. Chao Huang, 2023. "Multilateral matching with scale economies," Papers 2310.19479, arXiv.org.

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    More about this item

    Keywords

    Multilateral matching; Acyclic venture structure; No-crossing property; Stable outcome; Weakly setwise stable outcome;
    All these keywords.

    JEL classification:

    • C62 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Existence and Stability Conditions of Equilibrium
    • C78 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Bargaining Theory; Matching Theory
    • D85 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Network Formation

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