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The Price Sensitivity Of Medicare Beneficiaries: A Regression Discontinuity Approach

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  • Thomas C. Buchmueller
  • Kyle Grazier
  • Richard A. Hirth
  • Edward N. Okeke

Abstract

We use 4 years of data from the retiree health benefits program of the University of Michigan to estimate the effect of price on the health plan choices of Medicare beneficiaries. During the period of our analysis, changes in the University's premium contribution rules led to substantial price changes. A key feature of this ‘natural experiment’ is that individuals who had retired before a certain date were exempted from having to pay any premium contributions. This ‘grandfathering’ creates quasi‐experimental variation that is ideal for estimating the effect of price. Using regression discontinuity methods, we compare the plan choices of individuals who retired just after the grandfathering cutoff date and were therefore exposed to significant price changes to the choices of a ‘control group’ of individuals who retired just before that date and therefore did not experience the price changes. The results indicate a statistically significant effect of price, with a $10 increase in monthly premium contributions leading to a 2 to 3 percentage point decrease in a plan's market share. Copyright © 2012 John Wiley & Sons, Ltd.

Suggested Citation

  • Thomas C. Buchmueller & Kyle Grazier & Richard A. Hirth & Edward N. Okeke, 2013. "The Price Sensitivity Of Medicare Beneficiaries: A Regression Discontinuity Approach," Health Economics, John Wiley & Sons, Ltd., vol. 22(1), pages 35-51, January.
    • Handle: RePEc:wly:hlthec:v:22:y:2013:i:1:p:35-51
    DOI: 10.1002/hec.1814
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    References listed on IDEAS

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    1. Pilny, Adam & Wübker, Ansgar & Ziebarth, Nicolas R., 2017. "Introducing risk adjustment and free health plan choice in employer-based health insurance: Evidence from Germany," Journal of Health Economics, Elsevier, vol. 56(C), pages 330-351.
    2. Bunnings, C,; & Schmitz, H,; & Tauchmann, H,; & Ziebarth, N.R,;, 2015. "How Health Plan Enrollees Value Prices Relative to Supplemental Benefits and Service Quality," Health, Econometrics and Data Group (HEDG) Working Papers 15/02, HEDG, c/o Department of Economics, University of York.
    3. Duijmelinck, Daniëlle M.I.D. & Mosca, Ilaria & van de Ven, Wynand P.M.M., 2015. "Switching benefits and costs in competitive health insurance markets: A conceptual framework and empirical evidence from the Netherlands," Health Policy, Elsevier, vol. 119(5), pages 664-671.
    4. Wuppermann, Amelie & Bauhoff, Sebastian & Grabka, Markus, 2014. "The Price Sensitivity of Health Plan Choice among Retirees: Evidence from the German Social Health Insurance," VfS Annual Conference 2014 (Hamburg): Evidence-based Economic Policy 100352, Verein für Socialpolitik / German Economic Association.
    5. Jonas Pendzialek & Dusan Simic & Stephanie Stock, 2016. "Differences in price elasticities of demand for health insurance: a systematic review," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 17(1), pages 5-21, January.

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