Health Reform, Health Insurance, and Selection: Estimating Selection into Health Insurance Using the Massachusetts Health Reform
We implement an empirical test for selection into health insurance using changes in coverage induced by the introduction of mandated health insurance in Massachusetts. Our test examines changes in the cost of the newly insured relative to those who were insured prior to the reform. We find that counties with larger increases in insurance coverage over the reform period face the smallest increase in average hospital costs for the insured population, consistent with adverse selection into insurance before the reform. Additional results, incorporating cross-state variation and data on health measures, provide further evidence for adverse selection.
|Date of creation:||Jan 2012|
|Date of revision:|
|Publication status:||Published in American Economic Review: Papers and Proceedings (May 2012), 102(3): 498-501|
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- Liran Einav & Amy Finkelstein & Mark R. Cullen, 2010. "Estimating Welfare in Insurance Markets Using Variation in Prices," The Quarterly Journal of Economics, Oxford University Press, vol. 125(3), pages 877-921.
- David M. Cutler & Sarah J. Reber, 1998. "Paying for Health Insurance: The Trade-Off between Competition and Adverse Selection," The Quarterly Journal of Economics, Oxford University Press, vol. 113(2), pages 433-466.
- Jonathan T. Kolstad & Amanda E. Kowalski, 2010.
"The Impact of Health Care Reform On Hospital and Preventive Care: Evidence from Massachusetts,"
NBER Working Papers
16012, National Bureau of Economic Research, Inc.
- Kolstad, Jonathan T. & Kowalski, Amanda E., 2012. "The impact of health care reform on hospital and preventive care: Evidence from Massachusetts," Journal of Public Economics, Elsevier, vol. 96(11), pages 909-929.
- מחקר - ביטוח לאומי, 2006. "Annual Survey 2005," Working Papers 15, National Insurance Institute of Israel.
- Jonathan Gruber, 2011. "Massachusetts points the way to successful health care reform," Journal of Policy Analysis and Management, John Wiley & Sons, Ltd., vol. 30(1), pages 184-192, December.
- George A. Akerlof, 1970. "The Market for "Lemons": Quality Uncertainty and the Market Mechanism," The Quarterly Journal of Economics, Oxford University Press, vol. 84(3), pages 488-500.
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