Event Studies and the Analysis of Antitrust
A standard tool in economics and finance is the event study in which one examines the impact of an event on stock returns. While hundreds of such studies have been published, the concern here is with a small subset: the use of event studies to examine antitrust issues. After a brief review of the event study technique, we provide a review of the literature that is the nexus of event studies and antitrust. The goal is to not only chronicle the development of this literature and highlight the major findings, but also to comment on important issues concerning implementation of this research method and the interpretation of the results.
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Volume (Year): 13 (2006)
Issue (Month): 2 ()
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- Bittlingmayer, George & Hazlett, Thomas W., 2000. "DOS Kapital: Has antitrust action against Microsoft created value in the computer industry?," Journal of Financial Economics, Elsevier, vol. 55(3), pages 329-359, March.
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- Lamdin, Douglas J., 2001. "Implementing and interpreting event studies of regulatory changes," Journal of Economics and Business, Elsevier, vol. 53(2-3), pages 171-183.
- Larcker, David F. & Gordon, Lawrence A. & Pinches, George E., 1980. "Testing for Market Efficiency: A Comparison of the Cumulative Average Residual Methodology and Intervention Analysis," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 15(02), pages 267-287, June.
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- John Thompson & David Kaserman, 2001. "After The Fall: Stock Price Movements and the Deterrent Effect of Antitrust Enforcement," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 19(3), pages 329-334, November.
- Robert W. Crandall & Clifford Winston, 2003.
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- Robert W. Crandall & Clifford Winston, 2005. "Does antitrust policy improve consumer welfare? Assessing the evidence," Chapters, in: Governments, Competition and Utility Regulation, chapter 2 Edward Elgar Publishing.
- McAfee, R. Preston & Williams, Michael A., 1988. "Can event studies detect anticompetitive mergers?," Economics Letters, Elsevier, vol. 28(2), pages 199-203.
- Eckbo, B Espen & Maksimovic, Vojislav & Williams, Joseph, 1990. "Consistent Estimation of Cross-Sectional Models in Event Studies," Review of Financial Studies, Society for Financial Studies, vol. 3(3), pages 343-365.
- Eckbo, B Espen & Wier, Peggy, 1985. "Antimerger Policy under the Hart-Scott-Rodino Act: A Reexamination of the Market Power Hypothesis," Journal of Law and Economics, University of Chicago Press, vol. 28(1), pages 119-149, April.
- Brady, Una & M. Feinberg, Robert, 2000. "An examination of stock-price effects of EU merger control policy," International Journal of Industrial Organization, Elsevier, vol. 18(6), pages 885-900, August.
- Scott E. Hein, 2004. "Improving Tests of Abnormal Returns by Bootstrapping the Multivariate Regression Model with Event Parameters," Journal of Financial Econometrics, Society for Financial Econometrics, vol. 2(3), pages 451-471.
- Daniel Hosken & John David Simpson, 2001. "Have Supermarket Mergers Raised Prices? An Event Study Analysis," International Journal of the Economics of Business, Taylor & Francis Journals, vol. 8(3), pages 329-342.
- Arthur De Vany & Henry McMillan, 2004. "Was the Antitrust Action that Broke Up the Movie Studios Good for the Movies? Evidence from the Stock Market," American Law and Economics Review, Oxford University Press, vol. 6(1), pages 135-153.
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