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Public option and private profits: what do markets expect?
1Department of Economics, University of California, Irvine, California 92697-5100, USA. fmilani@uci.edu
Applied Health Economics and Health Policy
|March 6, 2010
Summary
The public health insurance option is expected to negatively impact private health insurers, reducing their stock returns. Market analysis suggests a potential 13% profit adjustment, not a collapse of the industry.
Area of Science:
- Health Economics
- Financial Markets Analysis
- Healthcare Policy
Background:
- The US healthcare reform debate centers on a public health plan option.
- Supporters anticipate increased competition, while opponents fear private insurer market collapse.
Purpose of the Study:
- To assess the likely impact of a public health option on the private health insurance market.
- To utilize financial market data for inferring market expectations.
Main Methods:
- Analysis of daily prediction market data (June 2009) on public option approval probability.
- Correlation of public option probability with stock returns of private health insurance companies and hospital companies.
Main Results:
- Health insurance stock returns significantly decreased with increased public option probability (10% probability increase led to 1.28% stock return decrease).
- Hospital company stock returns also showed a negative response (0.9% reduction).
Conclusions:
- Financial markets anticipate a negative effect of the public option on health insurance company valuations.
- Expected profit adjustments for insurers are around 13%, not indicating industry collapse.
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