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Stable Outcomes in Discrete and Continuous Models of Two-Sided Matching: a Unified Treatment

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  • Roth, Alvin E.
  • Sotomayor, Marilda
Abstract
We present a unified treatment of a class of two-sided matching models that includes discrete models (such as the marriage model of Gale and Shapley) and continuous models (such as the assignmnent model of Shapley aud Shubik and the generalized assignment model of Demange aud Gale). In contrast with previous, treatments, the parallel conclusions for the two sets of models are derived here in the same way from the same assumptions. We show that the results ill question all follow closely from the assumptions that the core coincides with the core defined by weak domination. In the marriage model, the assumption of strict preferences causes these two sets to coincide, while in the continuous models the two sets coincide because agents have continuous preferences and prices can be adjusted continuously.

Suggested Citation

  • Roth, Alvin E. & Sotomayor, Marilda, 1996. "Stable Outcomes in Discrete and Continuous Models of Two-Sided Matching: a Unified Treatment," Brazilian Review of Econometrics, Sociedade Brasileira de Econometria - SBE, vol. 16(2), November.
    • Handle: RePEc:sbe:breart:v:16:y:1996:i:2:a:2873
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    References listed on IDEAS

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    1. Crawford, Vincent P & Knoer, Elsie Marie, 1981. "Job Matching with Heterogeneous Firms and Workers," Econometrica, Econometric Society, vol. 49(2), pages 437-450, March.
    2. Demange, Gabrielle & Gale, David, 1985. "The Strategy Structure of Two-sided Matching Markets," Econometrica, Econometric Society, vol. 53(4), pages 873-888, July.
    3. Roth, Alvin E, 1986. "On the Allocation of Residents to Rural Hospitals: A General Property of Two-Sided Matching Markets," Econometrica, Econometric Society, vol. 54(2), pages 425-427, March.
    4. Alkan, Ahmet & Gale, David, 1990. "The core of the matching game," Games and Economic Behavior, Elsevier, vol. 2(3), pages 203-212, September.
    5. Roth, Alvin E, 1991. "A Natural Experiment in the Organization of Entry-Level Labor Markets: Regional Markets for New Physicians and Surgeons in the United Kingdom," American Economic Review, American Economic Association, vol. 81(3), pages 415-440, June.
    6. Mongell, Susan & Roth, Alvin E, 1991. "Sorority Rush as a Two-Sided Matching Mechanism," American Economic Review, American Economic Association, vol. 81(3), pages 441-464, June.
    7. Marilda Sotomayor, 1992. "The Multiple Partners Game," Palgrave Macmillan Books, in: Mukul Majumdar (ed.), Equilibrium and Dynamics, chapter 17, pages 322-354, Palgrave Macmillan.
    8. Roth, Alvin E, 1984. "Stability and Polarization of Interests in Job Matching," Econometrica, Econometric Society, vol. 52(1), pages 47-57, January.
    9. Roth, Alvin E, 1984. "The Evolution of the Labor Market for Medical Interns and Residents: A Case Study in Game Theory," Journal of Political Economy, University of Chicago Press, vol. 92(6), pages 991-1016, December.
    10. Roth, Alvin E & Vande Vate, John H, 1990. "Random Paths to Stability in Two-Sided Matching," Econometrica, Econometric Society, vol. 58(6), pages 1475-1480, November.
    11. Roth, Alvin E & Sotomayor, Marilda, 1989. "The College Admissions Problem Revisited," Econometrica, Econometric Society, vol. 57(3), pages 559-570, May.
    12. Alvin E. Roth, 1982. "The Economics of Matching: Stability and Incentives," Mathematics of Operations Research, INFORMS, vol. 7(4), pages 617-628, November.
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    Cited by:

    1. David Pérez-Castrillo & Marilda Sotomayor, 2013. "Two Folk Manipulability Theorems In The General One-To-Two-Sided Matching Markets With Money," Working Papers, Department of Economics 2013_01, University of São Paulo (FEA-USP).
    2. David Pérez-Castrillo & Marilda Sotomayor, 2013. "Two Folk Manipulability Theorems in the General One-to-one Two-sided Matching Markets with Money," Working Papers 681, Barcelona School of Economics.
    3. Sotomayor, Marilda, 2000. "Existence of stable outcomes and the lattice property for a unified matching market," Mathematical Social Sciences, Elsevier, vol. 39(2), pages 119-132, March.
    4. Somdeb Lahiri, 2005. "Stable Outcomes for Two-Sided Contract Choice Problems," Computational and Mathematical Organization Theory, Springer, vol. 10(4), pages 323-334, January.
    5. Winfried Hochstättler & Robert Nickel & David Schiess, 2008. "Mixed Matching Markets," University of St. Gallen Department of Economics working paper series 2008 2008-10, Department of Economics, University of St. Gallen.
    6. Lahiri, Somdeb, 2007. "A weak bargaining set for contract choice problems," Research in Economics, Elsevier, vol. 61(4), pages 185-190, December.
    7. Sotomayor, Marilda, 2003. "A Dynamic Price-Setting Mechanism for a Hybrid Matching Market," Brazilian Review of Econometrics, Sociedade Brasileira de Econometria - SBE, vol. 23(2), November.
    8. Sotomayor, Marilda, 2007. "Core structure and comparative statics in a hybrid matching market," Games and Economic Behavior, Elsevier, vol. 60(2), pages 357-380, August.
    9. Satoru Fujishige & Akihisa Tamura, 2007. "A Two-Sided Discrete-Concave Market with Possibly Bounded Side Payments: An Approach by Discrete Convex Analysis," Mathematics of Operations Research, INFORMS, vol. 32(1), pages 136-155, February.

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