Marriage Matching: A Conjecture of Donald Knuth
AbstractVariations of the Gale-Shapley algorithm have been used and studied extensively in real world markets. Examples include matching medical residents with residency programs, the kidney exchange program and matching college students with on-campus housing. The performance of the Gale-Shapley marriage matching algorithm (1962) has been studied extensively in the special case of men's and women's preferences random. We drop the assumption that women's preferences are random and show that En /n ln n -> 1, where En is the expected number of proposals made when the men-propose Gale-Shapley algorithm is used to match n men with n women. This establishes in spirit a conjecture of Donald Knuth (1976, 1997) of thirty years standing. Under the same assumptions, we also establish bounds on the expected ranking by a woman of her assigned mate. Bounds on men's rankings of their assigned mates follow directly from the conjecture.
Download InfoIf you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
Bibliographic InfoPaper provided by University of Connecticut, Department of Economics in its series Working papers with number 2007-15.
Length: 16 pages
Date of creation: May 2007
Date of revision:
Contact details of provider:
Postal: University of Connecticut 341 Mansfield Road, Unit 1063 Storrs, CT 06269-1063
Phone: (860) 486-4889
Fax: (860) 486-4463
Web page: http://www.econ.uconn.edu/
More information through EDIRC
Two-Sided Matching; Gale-Shapley algorithm;
Find related papers by JEL classification:
- C78 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Bargaining Theory; Matching Theory
- D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement
- D70 - Microeconomics - - Analysis of Collective Decision-Making - - - General
This paper has been announced in the following NEP Reports:
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Alvin E. Roth & Tayfun Sönmez & M. Utku Ünver, 2004.
The Quarterly Journal of Economics,
MIT Press, vol. 119(2), pages 457-488, May.
- Roth, Alvin & Ãœnver, M. Utku & SÃ¶nmez, Tayfun, 2004. "Kidney Exchange," Scholarly Articles 2580565, Harvard University Department of Economics.
- Alvin E. Roth & Tayfun Sonmez & M. Utku Unver, 2003. "Kidney Exchange," NBER Working Papers 10002, National Bureau of Economic Research, Inc.
- Alvin E. Roth & Tayfun Sonmez & M. Utku Unver, 2003. "Kidney Exchange," Game Theory and Information 0308002, EconWPA.
- Yan Chen & Tayfun S�nmez, 2002. "Improving Efficiency of On-Campus Housing: An Experimental Study," American Economic Review, American Economic Association, vol. 92(5), pages 1669-1686, December.
- Onur B. Celik & Vicki Knoblauch, 2007. "Marriage Matching with Correlated Preferences," Working papers 2007-16, University of Connecticut, Department of Economics.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Kasey Kniffin).
If references are entirely missing, you can add them using this form.