The Changing Effect of HMO Market Structure: An Analysis of Penetration, Concentration, and Ownership Between 1994-2005
We analyze the role of three aspects of HMO market structure -- HMO penetration, HMO plan concentration, and HMO for-profit share on explaining hospital cost and revenue growth during the HMO expansion period (1994-1999) and backlash period (2000-2005). We find that HMO penetration effects differ over time: a 10 percentage point increase in HMO enrollment leads to 2.5 percent reduction in cost and revenues in the expansion period but only 0.4-1 percent reduction in the backlash period. Furthermore, this HMO backlash effect can be attributed to HMO dis-enrollment as well as the changing nature of HMO product. We find that revenue increases at a slower rate (by about 5 percent) in markets with relatively concentrated HMO markets power and more competitive hospital markets. Finally, increased for-profit HMO presence is associated with smaller cost and revenue growth, and the effect differs between low and high penetration markets.
|Date of creation:||Feb 2008|
|Date of revision:|
|Publication status:||published as Shen, Y., Wu, V., and Melnick, G. 2010. Trends in Hospital Cost and Revenue, 1994-2005: How Are They Related to HMO Penetration, Concentration and For-Profit Ownership. Health Services Research, 45 (1): 42-61.|
|Contact details of provider:|| Postal: |
Web page: http://www.nber.org
More information through EDIRC
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 & Louise Sheiner, 1997.
"Managed Care and the Growth of Medical Expenditures,"
NBER Working Papers
6140, National Bureau of Economic Research, Inc.
- David M. Cutler & Louise Sheiner, 1998. "Managed Care and the Growth of Medical Expenditures," NBER Chapters, in: Frontiers in Health Policy Research, Volume 1, pages 77-116 National Bureau of Economic Research, Inc.
- Robert Connor & Roger Feldman & Bryan Dowd, 1998. "The Effects of Market Concentration and Horizontal Mergers on Hospital Costs and Prices," International Journal of the Economics of Business, Taylor & Francis Journals, vol. 5(2), pages 159-180.
- Brooks, John M. & Dor, Avi & Wong, Herbert S., 1997. "Hospital-insurer bargaining: An empirical investigation of appendectomy pricing," Journal of Health Economics, Elsevier, vol. 16(4), pages 417-434, August.
- Cutler David M. & Sheiner Louise, 1998. "Managed Care and the Growth of Medical Expenditures," Forum for Health Economics & Policy, De Gruyter, vol. 1(1), pages 1-41, January.
- Laurence C. Baker & Sharmila Shankarkumar, 1997. "Managed Care and Health Care Expenditures: Evidence From Medicare," NBER Working Papers 6187, National Bureau of Economic Research, Inc.
When requesting a correction, please mention this item's handle: RePEc:nbr:nberwo:13775. 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: ()
If references are entirely missing, you can add them using this form.