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Games with capacity manipulation: incentives and Nash equilibria

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  • Antonio Romero-Medina

    ()

  • Matteo Triossi

    ()

Abstract

Studying the interactions between preference and capacity manipulation in matching markets, we prove that acyclicity is a necessary and sufficient condition that guarantees the stability of a Nash equilibrium and the strategy-proofness of truthful capacity revelation under the hospital-optimal and intern-optimal stable rules. We then introduce generalized games of manipulation in which hospitals move first and state their capacities, and interns are subsequently assigned to hospitals using a sequential mechanism. In this setting, we first consider stable revelation mechanisms and introduce conditions guaranteeing the stability of the outcome. Next, we prove that every stable non-revelation mechanism leads to unstable allocations, unless restrictions on the preferences of the agents are introduced. Copyright Springer-Verlag Berlin Heidelberg 2013

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Bibliographic Info

Article provided by Springer in its journal Social Choice and Welfare.

Volume (Year): 41 (2013)
Issue (Month): 3 (September)
Pages: 701-720

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Handle: RePEc:spr:sochwe:v:41:y:2013:i:3:p:701-720

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Cited by:
  1. EHLERS, Lars, 2009. "Manipulation via Capacities Revisited," Cahiers de recherche 04-2009, Centre interuniversitaire de recherche en économie quantitative, CIREQ.
  2. Antonio Romero-Medina & Matteo Triossi, 2011. "Acyclicity and singleton cores in matching markets," Economics Working Papers we1126, Universidad Carlos III, Departamento de Economía.

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