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Managed Care and Medical Expenditures of Medicare Beneficiaries

Author

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  • Michael Chernew
  • Philip DeCicca
  • Robert Town

Abstract

This paper investigates the impact of Medicare HMO penetration on the medical care expenditures incurred by Medicare fee-for-service enrollees. We find that increasing penetration leads to reduced health care spending on fee-for-service beneficiaries. In particular, a one percentage point increase in Medicare HMO penetration reduces such spending by .9 percent. We estimate similar models for various measures of health care utilization and find penetration-induced reductions, consistent with our spending estimates. Finally, we present evidence that suggests our estimated spending reductions are driven by beneficiaries who have at least one chronic condition.

Suggested Citation

  • Michael Chernew & Philip DeCicca & Robert Town, 2008. "Managed Care and Medical Expenditures of Medicare Beneficiaries," NBER Working Papers 13747, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:13747
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    References listed on IDEAS

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    1. Gowrisankaran Gautam & Town Robert & Barrette Eric, 2011. "Managed Care, Drug Benefits and Mortality: An Analysis of the Elderly," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 11(2), pages 1-32, January.
    2. Cawley John & Chernew Michael & McLaughlin Catherine, 2002. "CMS Payments Necessary to Support HMO Participation in Medicare Managed Care," Forum for Health Economics & Policy, De Gruyter, vol. 5(1), pages 1-28, January.
    3. 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.
    4. Baker, Laurence C., 1997. "The effect of HMOs on fee-for-service health care expenditures: Evidence from Medicare," Journal of Health Economics, Elsevier, vol. 16(4), pages 453-481, August.
    5. Hill, Steven C. & Wolfe, Barbara L., 1997. "Testing the HMO competitive strategy: An analysis of its impact on medical care resources," Journal of Health Economics, Elsevier, vol. 16(3), pages 261-286, June.
    6. Town, Robert & Liu, Su, 2003. " The Welfare Impact of Medicare HMOs," RAND Journal of Economics, The RAND Corporation, vol. 34(4), pages 719-736, Winter.
    7. Michelle M. Mello & Sally C. Stearns & Edward C. Norton, 2002. "Do Medicare HMOs still reduce health services use after controlling for selection bias?," Health Economics, John Wiley & Sons, Ltd., vol. 11(4), pages 323-340.
    8. Baker, Laurence C & McClellan, Mark B, 2001. "Managed Care, Health Care Quality, and Regulation," The Journal of Legal Studies, University of Chicago Press, vol. 30(2), pages 715-741, June.
    9. Zwanziger, Jack & Melnick, Glenn A., 1988. "The effects of hospital competition and the Medicare PPS program on hospital cost behavior in California," Journal of Health Economics, Elsevier, vol. 7(4), pages 301-320, December.
    10. Cao, Zhun & McGuire, Thomas G., 2003. "Service-level selection by HMOs in Medicare," Journal of Health Economics, Elsevier, vol. 22(6), pages 915-931, November.
    11. Baker, Laurence C & Corts, Kenneth S, 1996. "HMO Penetration and the Cost of Health Care: Market Discipline or Market Segmentation?," American Economic Review, American Economic Association, vol. 86(2), pages 389-394, May.
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    Cited by:

    1. Karen Stockley & Thomas McGuire & Christopher Afendulis & Michael E. Chernew, 2014. "Premium Transparency in the Medicare Advantage Market: Implications for Premiums, Benefits, and Efficiency," NBER Working Papers 20208, National Bureau of Economic Research, Inc.
    2. Katherine Baicker & Michael Chernew & Jacob Robbins, 2013. "The Spillover Effects of Medicare Managed Care: Medicare Advantage and Hospital Utilization," NBER Working Papers 19070, National Bureau of Economic Research, Inc.
    3. Song, Zirui & Landrum, Mary Beth & Chernew, Michael E., 2013. "Competitive bidding in Medicare Advantage: Effect of benchmark changes on plan bids," Journal of Health Economics, Elsevier, vol. 32(6), pages 1301-1312.
    4. Baicker, Katherine & Chernew, Michael E. & Robbins, Jacob A., 2013. "The spillover effects of Medicare managed care: Medicare Advantage and hospital utilization," Journal of Health Economics, Elsevier, vol. 32(6), pages 1289-1300.
    5. Dunn, Abe, 2010. "The value of coverage in the medicare advantage insurance market," Journal of Health Economics, Elsevier, vol. 29(6), pages 839-855, December.
    6. Wuppermann, Amelie & Bauhoff, Sebastian & Grabka, Markus, 2014. "The Price Sensitivity of Health Plan Choice among Retirees: Evidence from the German Social Health Insurance," Annual Conference 2014 (Hamburg): Evidence-based Economic Policy 100352, Verein für Socialpolitik / German Economic Association.

    More about this item

    JEL classification:

    • I11 - Health, Education, and Welfare - - Health - - - Analysis of Health Care Markets
    • I18 - Health, Education, and Welfare - - Health - - - Government Policy; Regulation; Public Health

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