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Unilateral Substitutability implies Substitutable completability in many-to-one matching with contracts

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  • Kadam, Sangram V

Abstract

We prove that the unilateral substitutability property introduced in Hatfield and Kojima (2010) implies the substitutable completability property from Hatfield and Kominers (2014). This paper provides a novel linkage between these two sufficient conditions for the existence of a stable matching in many-to-one matching markets with contracts. A substitutable completion of a preference is a substitutable preference created by adding some sets of contracts to the original preference order. We provide an algorithm which when operated on the unilaterally substitutable preferences produces such a substitutable completion. Thus it provides a constructive proof of the connection between the two properties.

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  • Kadam, Sangram V, 2014. "Unilateral Substitutability implies Substitutable completability in many-to-one matching with contracts," Working Paper 139666, Harvard University OpenScholar.
    • Handle: RePEc:qsh:wpaper:139666
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    Cited by:

    1. Kadam, Sangram Vilasrao, 2017. "Unilateral substitutability implies substitutable completability in many-to-one matching with contracts," Games and Economic Behavior, Elsevier, vol. 102(C), pages 56-68.
    2. Zhang, Jun, 2016. "On sufficient conditions for the existence of stable matchings with contracts," Economics Letters, Elsevier, vol. 145(C), pages 230-234.
    3. Ravi Jagadeesan, 2019. "Cadet-Branch Matching in a Kelso-Crawford Economy," American Economic Journal: Microeconomics, American Economic Association, vol. 11(3), pages 191-224, August.
    4. Jan Christoph Schlegel, 2014. "Contracts versus Salaries in Matching: A General Result. N.B.: This paper replaces Nr 13.09 "Contracts versus Salaries in Matching: Comment", (June 2013)," Cahiers de Recherches Economiques du Département d'économie 14.05, Université de Lausanne, Faculté des HEC, Département d’économie.

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