Adverse Selection in Health Insurance
AbstractIndividual choice over health insurance policies may result in risk-based sorting across plans. Such adverse selection induces three types of losses: efficiency losses from individuals being allocated to the wrong plans; risk sharing losses since premium variability is increased; and losses from insurers distorting their policies to improve their mix of insureds. We discuss the potential for these losses, and present empirical evidence on adverse selection in two groups of employees: Harvard University, and the Group Insurance Commission of Massachusetts (serving state and local employees). In both groups, adverse selection is a significant concern. At Harvard, the University's decision to contribute an equal amount to all insurance plans led to the disappearance of the most generous policy within 3 years. At the GIC, adverse selection has been contained by subsidizing premiums on a proportional basis and managing the most generous policy very tightly. A combination of prospective or retrospective risk adjustment, coupled with reinsurance for high cost cases, seems promising as a way to provide appropriate incentives for enrollees and to reduce losses from adverse selection.
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 National Bureau of Economic Research, Inc in its series NBER Working Papers with number 6107.
Date of creation: Jul 1997
Date of revision:
Publication status: published as Cutler, David M. and Richard J. Zeckhauser. "Adverse Selection In Health Insurance," Forum for Health Economics and Policy, 1998, v1, Article 2.
Note: HC PE
Contact details of provider:
Postal: National Bureau of Economic Research, 1050 Massachusetts Avenue Cambridge, MA 02138, U.S.A.
Web page: http://www.nber.org
More information through EDIRC
Other versions of this item:
- Cutler David M. & Zeckhauser Richard J., 1998. "Adverse Selection in Health Insurance," Forum for Health Economics & Policy, De Gruyter, vol. 1(1), pages 1-33, January.
- David M. Cutler & Richard J. Zeckhauser, 1998. "Adverse Selection in Health Insurance," NBER Chapters, in: Frontiers in Health Policy Research, volume 1, pages 1-32 National Bureau of Economic Research, Inc.
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.:
- David M. Cutler & Sarah J. Reber, 1998.
"Paying For Health Insurance: The Trade-Off Between Competition And Adverse Selection,"
The Quarterly Journal of Economics,
MIT Press, vol. 113(2), pages 433-466, May.
- David M. Cutler & Sarah Reber, 1996. "Paying for Health Insurance: The Tradeoff between Competition and Adverse Selection," NBER Working Papers 5796, National Bureau of Economic Research, Inc.
- David M. Cutler & Richard J. Zeckhauser, 1999.
"Reinsurance for Catastrophes and Cataclysms,"
in: The Financing of Catastrophe Risk, pages 233-274
National Bureau of Economic Research, Inc.
This item has more than 25 citations. To prevent cluttering this page, these citations are listed on a separate page. reading list or among the top items on IDEAS.Access and download statisticsgeneral information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: ().
If references are entirely missing, you can add them using this form.