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On Stable and Strategy-Proof Rules in Matching Markets with Contracts

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Listed:
  • HIRATA, Daisuke
  • KASUYA, Yusuke

Abstract

This paper studies stable and (one-sided) strategy-proof rules in many-to-one matching markets with contracts. Not assuming any kind of substitutes condition or the law of aggregate demand, we obtain the following results. First, the number of stable and strategy-proof rules is at most one. Second, the doctor-optimal stable rule, whenever it exists, is the unique candidate for a stable and strategy-proof rule. Third, a stable and strategy-proof rule, whenever it exists, is second-best optimal for doctor welfare, in that no individually rational and strategy-proof rule can dominate it. This last result is further generalized to non-wasteful and strategy-proof rules. Due to the weak assumptions, our analysis covers a broad range of markets, including cases where a (unique) stable and strategy-proof rule is not equal to the one induced by the cumulative offer process or the deferred acceptance algorithm.

Suggested Citation

  • HIRATA, Daisuke & KASUYA, Yusuke, 2016. "On Stable and Strategy-Proof Rules in Matching Markets with Contracts," Discussion Papers 2016-13, Graduate School of Economics, Hitotsubashi University.
  • Handle: RePEc:hit:econdp:2016-13
    Note: This Version: December, 2016
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    References listed on IDEAS

    as
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    Citations

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    Cited by:

    1. Mustafa Oǧuz Afacan, 2016. "Characterizations of the cumulative offer process," Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 47(3), pages 531-542, October.
    2. Nickesha Ayoade & Szilvia Pápai, 2020. "School Choice with Preference Rank Classes," Working Papers 20002, Concordia University, Department of Economics.
    3. Schlegel, Jan Christoph, 2020. "Equivalent choice functions and stable mechanisms," Games and Economic Behavior, Elsevier, vol. 123(C), pages 41-53.
    4. Michelle Avataneo & Bertan Turhan, 2020. "Slot-specific Priorities with Capacity Transfers," Papers 2004.13265, arXiv.org, revised Sep 2020.
    5. Afacan, Mustafa Oǧuz, 2020. "Graduate admission with financial support," Journal of Mathematical Economics, Elsevier, vol. 87(C), pages 114-127.
    6. Jan Christoph Schlegel, 2016. "Virtual Demand and Stable Mechanisms," Cahiers de Recherches Economiques du Département d'économie 16.11, Université de Lausanne, Faculté des HEC, Département d’économie.
    7. HIRATA, Daisuke & KASUYA, Yusuke, 2016. "Supplementary Note to “On Stable and Strategy-Proof Rules in Matching Markets with Contracts”," Discussion Papers 2016-14, Graduate School of Economics, Hitotsubashi University.
    8. Kamada, Yuichiro & Kojima, Fuhito, 2018. "Stability and strategy-proofness for matching with constraints: a necessary and sufficient condition," Theoretical Economics, Econometric Society, vol. 13(2), May.

    More about this item

    Keywords

    matching with contracts; stability; strategy-proofness; uniqueness; efficiency; irrelevance of rejected contracts;

    JEL classification:

    • C78 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Bargaining Theory; Matching Theory
    • D47 - Microeconomics - - Market Structure, Pricing, and Design - - - Market Design

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