Abstract

http://ssrn.com/abstract=2111642
 
 

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Health Care Reform and Health Care Stocks: Evidence from the A ffordable Care Act Supreme Court Ruling


Jonathan Hartley


University of Chicago

July 16, 2012

Becker Friedman Institute for Research in Economics Working Paper No. 2012-009

Abstract:     
The Patient Protection and Aff ordable Care Act of 2010 marked a substantial shift in U.S. health care policy. This paper creates an event study that measures the impact of the law by observing health care fi rm stocks in the S&P 500 when on June 28, 2012, the U.S. Supreme Court very unexpectedly did not overturn key sections of the Affordable Care Act in their landmark ruling on NFIB v. Sebelius. This included upholding the individual mandate, a provision requiring that Americans maintain a certain level of health insurance or face a monetary penalty. Following the upheaval, the paper finds cumulative average abnormal returns for managed care stocks of -6.7% (-$6.9 bn in total market capitalization). The same metric was -1.2% (-$1.5 bn) for biotechnology companies, 3.2% ($0.4 bn increase) for hospitals, 1.9% ($1.6 bn increase) for health care services, and 0.5% ($4.8 bn increase) for pharmaceutical companies. Health care equipment, distribution, and technology stocks had flat cumulative average abnormal returns over the period.

Number of Pages in PDF File: 26

Keywords: Legislatures, and Voting Behavior, Information and Market Efficiency, Event Studies, Analysis of Health Care Markets, Industrial Policy

JEL Classification: D72, G14, I11, L52

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Date posted: July 17, 2012 ; Last revised: July 3, 2013

Suggested Citation

Hartley, Jonathan, Health Care Reform and Health Care Stocks: Evidence from the A ffordable Care Act Supreme Court Ruling (July 16, 2012). Becker Friedman Institute for Research in Economics Working Paper No. 2012-009. Available at SSRN: http://ssrn.com/abstract=2111642 or http://dx.doi.org/10.2139/ssrn.2111642

Contact Information

Jonathan Hartley (Contact Author)
University of Chicago ( email )
1101 East 58th Street
Chicago, IL 60637
United States
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