Abstract
This paper studies Nash implementation in the job-matching market where each worker works for only one firm and a firm hires as many workers as it wishes. We show that the competitive equilibrium correspondence (CEC) is the smallest Nash implementable correspondence satisfying individual rationality and Pareto indifference. Furthermore, the CEC is the minimal monotonic extension of the worker-optimal and firm-optimal subcorrespondences. We offer two “good” mechanisms that implement this correspondence in Nash equilibrium.
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Alcalde J, Pérez-Castrillo D, Romero-Medina A (1998) Hiring procedures to implement stable allocations. J Econ Theory 82: 469–480
Dutta B, Sen A, Vohra R (1995) Nash implementation through elementary mechanisms in economic environments. Econ Des 1: 173–203
Fujishige S, Yang Z (2003) A note on Kelso and Crawford’s gross substitutes condition. Math Oper Res 28: 463–469
Gevers L (1986) Walrasian social choice: some simple axiomatic approaches. In: Heller WP, Starr R, Starret D(eds) Social choice and public decision making: essays in honor of K.J Arrow, vol 1. Cambridge University Press, Cambridge
Haake C-J, Klaus B (2007) Monotonicity and Nash implementation in matching markets with contracts. Econ Theory (in press)
Hurwicz L (1960) Optimality and informational efficiency in resource allocation processes. In: Arrow KJ, Karlin S, Suppes P(eds) Mathematical methods in social sciences. Stanford University Press, Stanford
Jackson MO (2001) A crash course in implementation theory. Soc Choice Welfare 18: 655–708
Jackson MO, Palfrey T, Srivastava S (1994) Undominated Nash implementation. Games Econ Behav 6: 474–571
Kara T, Sönmez T (1996) Nash implementation of matching rules. J Econ Theory 68: 425–439
Kara T, Sönmez T (1997) Implementation of college admission rules. Econ Theory 9: 197–218
Kelso AS Jr, Crawford VP (1982) Job matching, coalition formation, and gross substitute. Econometrica 50: 1483–1504
Maskin E (1999) Nash equilibrium and welfare optimality. Rev Econ Stud 66: 23–38
Nagahisa R (1991) A local independence condition for characterization of Walrasian allocations rule. J Econ Theory 54: 106–123
Nagahisa R (1992) Walrasian social choice in a large economy. Math Soc Sci 24: 73–78
Nagahisa R (1994) A necessary and sufficient condition for Walrasian social choice. J Econ Theory 62: 186–208
Nagahisa R, Suh S-C (1995) A characterization of the Walras rule. Soc Choice Welfare 12: 335–352
Perez-Castrillo D, Sotomayor M (2002) A simple selling and buying procedure. J Econ Theory 103: 461–474
Roth A (1984) Conflict and coincidence of interest in job matching: some new results and open questions. Math Oper Res 10: 379–389
Roth A (1985) Stability and polarization of interests in job matching. Econometrica 52: 47–57
Saijo T, Tatamitani Y, Yamato T (1996) Toward natural implementation. Int Econ Rev 37: 941–980
Saijo T, Tatamitani Y, Yamato T (1999) Characterizing natural implementability: the fair and Walrasian correspondences. Games Econ Behav 28: 271–293
Sakai T (2007) Fairness and implementability in allocation of indivisible objects with monetary compensations. J Math Econ 43: 549–563
Sen A (1995) The implementation of social choice functions via social choice correspondences: a general formulation and a limited result. Soc Choice Welfare 12: 277–292
Serrano R, Vohra R (1997) Non-cooperative implementation of the core. Soc Choice Welfare 14: 513–525
Schmeidler D (1980) Walrasian analysis via strategic outcome functions. Econometrica 40: 1585–1594
Sotomayor M (2004) Implementation in the many-to-many matching market. Games Econ Behav 46: 199–212
Svensson L-G (1991) Nash implementation of competitive equilibria in a model with indivisible goods. Econometrica 59: 869–877
Suh S-C (2003) Games implementing the stable rule of marriage problems in strong Nash equilibria. Soc Choice Welfare 20: 28–33
Tadenuma K, Thomson W (1995) Games of fair division. Games Econ Behav 9: 191–204
Thomson W (1985) Lecture notes on manipulation and implementation, mimeo
Thomson W (1987) The vulnerability to manipulative behavior of resource allocation mechanisms designed to select equitable and efficient outcomes. In: Groves T, Radner R, Reiter S(eds) Information, incentives and economic mechanisms: essays in honor of Leonid Hurwicz. University of Minnesota Press, Minneapolis
Thomson W (1990) Manipulation and implementation in economies with single-peaked preferences (mimeo). University of Rochester
Thomson W (1999a) Economies with public goods: an elementary geometric exposition. J Public Econ Theory 1: 139–176
Thomson W (1999b) Monotonic extensions on economic domains. Rev Econ Des 4: 13–33
Thomson W (2005) Divide and permute. Games Econ Behav 52: 186–200
Thomson W (2008) Fair allocation rules. In: Arrow K, Sen A, Suzumura K (eds) Handbook of Social Choice and Welfare. North-Holland, Amsterdam, New York (in press)
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We are grateful to two anonymous referees, Tridib Sharma, and especially William Thomson for their very helpful comments. We also thank participants at the UT-ITAM conference.
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Hayashi, T., Sakai, T. Nash implementation of competitive equilibria in the job-matching market. Int J Game Theory 38, 453–467 (2009). https://doi.org/10.1007/s00182-009-0163-8
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DOI: https://doi.org/10.1007/s00182-009-0163-8
Keywords
- Job-matching
- Many-to-one matching
- Nash implementation
- Mechanism design
- Monotonic extension
- Indivisible goods