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The Effect of U.S. Health Insurance Expansions on Medical Innovation


Jeffrey P. Clemens


University of California, San Diego (UCSD) - Department of Economics; NBER

December 12, 2013

SIEPR Discussion Paper No. 11-016

Abstract:     
I study the channels through which health insurance influences medical innovation. Following Medicare and Medicaid's passage, I find that U.S.-based medical-equipment patenting rose by 40 to 50 percent relative to both other U.S. patenting and foreign medical-equipment patenting. Within the United States, increases in medical-equipment patenting were most dramatic in states where the Great Society insurance expansions were largest and in which there were large baseline numbers of physicians per resident. Consistent with historical case studies, Medical innovation's determinants extend beyond the potential revenues associated with global market size; a physician driven process of innovation-while-doing appears to play a central role. An extrapolation of the evidence suggests that the last half century's U.S. insurance expansions have driven 25 percent of recent global medical-equipment innovation. In a standard decomposition of health spending growth, this insurance-induced innovation accounts for 15 percent of the long run rise in U.S. health spending in hospitals, physicians' offices, and other clinical settings.

Number of Pages in PDF File: 74

Keywords: Health Insurance, Government Policy, Innovation and Invention, Government Expenditures and Health

JEL Classification: I13, O38, O31, H51

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Date posted: July 5, 2012 ; Last revised: December 13, 2013

Suggested Citation

Clemens, Jeffrey P., The Effect of U.S. Health Insurance Expansions on Medical Innovation (December 12, 2013). SIEPR Discussion Paper No. 11-016. Available at SSRN: http://ssrn.com/abstract=2101246 or http://dx.doi.org/10.2139/ssrn.2101246

Contact Information

Jeffrey P. Clemens (Contact Author)
University of California, San Diego (UCSD) - Department of Economics ( email )
9500 Gilman Drive
La Jolla, CA 92093-0508
United States
HOME PAGE: http://econweb.ucsd.edu/~j1clemens/
NBER ( email )
1050 Massachusetts Avenue
Cambridge, MA 02138
United States
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