Matching with Couples: Stability and Incentives in Large Markets

• 成果类型: Article
• 署名作者: Kojima, Fuhito; Pathak, Parag A.; Roth, Alvin E.
• 署名单位: Stanford University; Massachusetts Institute of Technology (MIT); National Bureau of Economic Research
• 刊物名称: QUARTERLY JOURNAL OF ECONOMICS
• ISSN/ISSBN: 0033-5533
• DOI: 10.1093/qje/qjt019
• 发表日期: 2013
• 页码: 1585-1632
• 关键词: TRUNCATION STRATEGIES; INTERNSHIP SELECTION; college admissions; school choice; EFFICIENCY; equilibrium; preferences; substitutes; allocation; physicians

摘要

Accommodating couples has been a long-standing issue in the design of centralized labor market clearinghouses for doctors and psychologists, because couples view pairs of jobs as complements. A stable matching may not exist when couples are present. This article's main result is that a stable matching exists when there are relatively few couples and preference lists are sufficiently short relative to market size. We also discuss incentives in markets with couples. We relate these theoretical results to the job market for psychologists, in which stable matchings exist for all years of the data, despite the presence of couples.