A limited-sample benchmark approach to assess and improve the performance of risk equalization models
A new method is proposed to assess and improve the performance of risk equalization models in competitive markets for individual health insurance, where compensation is intended for variation in observed expenditures due to so-called S(ubsidy)-type risk factors but not for variation due to other, so-called N(on-subsidy)-type risk factors. Given the availability of a rich subsample of individuals for which normative expenditures, YNORM, can be accurately determined, we make two contributions: (a) any risk equalization scheme applied to the entire population, YREF, should be evaluated through its performance in the subsample, by comparing YREF with YNORM (not by comparing YREF with observed expenditures, Y, in the entire population, as commonly done); (b) conventional risk equalization schemes can be improved by the subsample regression of YNORM, rather than Y, on the risk adjusters that are observable in the entire population. This new method is illustrated by an application to the 2004 Dutch risk equalization model.
If 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.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
References listed on IDEAS
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.:
- Frank, Richard G. & Glazer, Jacob & McGuire, Thomas G., 2000. "Measuring adverse selection in managed health care," Journal of Health Economics, Elsevier, vol. 19(6), pages 829-854, November.
- Hausman, Jerry A, 1978.
"Specification Tests in Econometrics,"
Econometric Society, vol. 46(6), pages 1251-71, November.
- van Barneveld, Erik M. & Lamers, Leida M. & van Vliet, Rene C. J. A. & van de Ven, Wynand P. M. M., 2001. "Risk sharing as a supplement to imperfect capitation: a tradeoff between selection and efficiency," Journal of Health Economics, Elsevier, vol. 20(2), pages 147-168, March.
- David E. M. Sappington & Tracy R. Lewis, 1999. "Using Subjective Risk Adjusting to Prevent Patient Dumping in the Health Care Industry," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 8(3), pages 351-382, 09.
- Roy Carr-Hill & Geoffrey Hardman & Stephen Martin & Stuart Peacock & Trevor Sheldon & Peter Smith, 1994. "A formula for distributing NHS revenues based on small area use of hospital beds," Working Papers 022cheop, Centre for Health Economics, University of York.
- Erik SCHOKKAERT & Carine VAN DE VOORDE, 2000.
"Risk Selection and the Specification of the Conventional Risk Adjustment Formula,"
Center for Economic Studies - Discussion papers
ces0011, Katholieke Universiteit Leuven, Centrum voor Economische Studiën.
- Schokkaert, Erik & Van de Voorde, Carine, 2004. "Risk selection and the specification of the conventional risk adjustment formula," Journal of Health Economics, Elsevier, vol. 23(6), pages 1237-1259, November.
- van de Ven, Wynand P. M. M. & van Vliet, Rene C. J. A. & Schut, Frederik T. & van Barneveld, Erik M., 2000. "Access to coverage for high-risks in a competitive individual health insurance market: via premium rate restrictions or risk-adjusted premium subsidies?," Journal of Health Economics, Elsevier, vol. 19(3), pages 311-339, May.
- Van de ven, Wynand P.M.M. & Ellis, Randall P., 2000. "Risk adjustment in competitive health plan markets," Handbook of Health Economics, in: A. J. Culyer & J. P. Newhouse (ed.), Handbook of Health Economics, edition 1, volume 1, chapter 14, pages 755-845 Elsevier.
- Erik Schokkaert & Carine Van de Voorde, 2000. "Risk adjustment and the fear of markets: The case of Belgium," Health Care Management Science, Springer, vol. 3(2), pages 121-130, February.
- Richard C. van Kleef & Wynand P. M. M. van de Ven & René C. J. A. van Vliet, 2006. "A Voluntary Deductible in Social Health Insurance with Risk Equalization: "Community-Rated or Risk-Rated Premium Rebate?"," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 73(3), pages 529-550.
- Ellis, Randall P., 1998. "Creaming, skimping and dumping: provider competition on the intensive and extensive margins1," Journal of Health Economics, Elsevier, vol. 17(5), pages 537-555, October.
- Erik Schokkaert & Geert Dhaene & Carine Van De Voorde, 1998. "Risk adjustment and the trade-off between efficiency and risk selection: an application of the theory of fair compensation," Health Economics, John Wiley & Sons, Ltd., vol. 7(5), pages 465-480.
- Glazer, Jacob & McGuire, Thomas G., 2002. "Setting health plan premiums to ensure efficient quality in health care: minimum variance optimal risk adjustment," Journal of Public Economics, Elsevier, vol. 84(2), pages 153-173, May.
When requesting a correction, please mention this item's handle: RePEc:eee:jhecon:v:29:y:2010:i:3:p:426-437. See general 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: (Zhang, Lei)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.