The Effect of EU Antitrust Investigations and Fines on a Firm’s Valuation
We estimate, using event study techniques, the impact of the main events in an antitrust investigation on a firm’s stock market value. A surprise inspection at the firm’s premises has a strong and statistically significant effect on the firm’s share price, with its cumulative average abnormal return being approximately -2%. Further, we find that a negative Decision by the European Commission results in a cumulative average abnormal return of about -3.3%. Overall, the fine accounts for a relatively small fraction of this loss in value. Finally, if the Court annuls or reduces the fine, this has a positive (+2%) effect on the firm’s valuation.
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- Tomaso Duso & Damien J. Neven & Lars-Hendrik RÃ¶ller, 2007.
"The Political Economy of European Merger Control: Evidence using Stock Market Data,"
Journal of Law and Economics,
University of Chicago Press, vol. 50, pages 455-489.
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- Tomaso Duso & Damien J. Neven & Lars-Hendrik Röller, 2002. "The Political Economy of European Merger Control: Evidence using Stock Market Data," CIG Working Papers FS IV 02-34, Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG).
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- A. Craig MacKinlay, 1997. "Event Studies in Economics and Finance," Journal of Economic Literature, American Economic Association, vol. 35(1), pages 13-39, March.
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