Ex ante or ex post competition policy? A progress report
AbstractWhen intervening in markets, say to block a merger, competition authorities are constrained by the limited information they have about the social desirability of the available alternatives. Compared to ex ante control, ex post control is based on the more accurate information that becomes available in the intervening period, but entails temporary losses to social welfare and reversal costs incurred to unscramble the eggs. Through a toy model, we identify situations in which the competition authority finds it optimal to commit to forego the option of ex post review in order to avoid chilling ex ante socially beneficial mergers. On the other hand, the case for ex post review is strengthened if post-merger market conducts can signal the merged firm's private information about the consequences of the merger.
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Bibliographic InfoArticle provided by Elsevier in its journal International Journal of Industrial Organization.
Volume (Year): 29 (2011)
Issue (Month): 3 (May)
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Web page: http://www.elsevier.com/locate/inca/505551
Competition policy Regulation Merger review Learning Signaling;
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- Frédéric Loss & Estelle Malavolti-Grimal & Thibaud Vergé & Fabian Bergès-Sennou, 2005.
"European Competition Policy Modernization : From Notifications to Legal Exception,"
2005-38, Centre de Recherche en Economie et Statistique.
- Loss, Frederic & Malavolti-Grimal, Estelle & Verge, Thibaud & Berges-Sennou, Fabian, 2008. "European competition policy modernization: From notifications to legal exception," European Economic Review, Elsevier, vol. 52(1), pages 77-98, January.
- Bergès, Fabian & Loss, Frédéric & Malavolti, Estelle & Vergé, Thibaud, 2008. "European Competition Policy Modernization: From Notification to Legal Exception," Open Access publications from University of Toulouse 1 Capitole http://neeo.univ-tlse1.fr, University of Toulouse 1 Capitole.
- Bruno Strulovici, 2010.
"Learning While Voting: Determinants of Collective Experimentation,"
Econometric Society, vol. 78(3), pages 933-971, 05.
- Bruno Strulovici, 2008. "Learning while voting: determinants of collective experimentation," Economics Papers 2008-W08, Economics Group, Nuffield College, University of Oxford.
- Bruno Strulovici, 2008. "Learning While Voting: Determinants of Collective Experimentation," Economics Series Working Papers 2008-WO8, University of Oxford, Department of Economics.
- Elzinga, Kenneth G, 1969. "The Antimerger Law: Pyrrhic Victories?," Journal of Law and Economics, University of Chicago Press, vol. 12(1), pages 43-78, April.
- Cho, In-Koo & Kreps, David M, 1987.
"Signaling Games and Stable Equilibria,"
The Quarterly Journal of Economics,
MIT Press, vol. 102(2), pages 179-221, May.
- Johnson, Ronald N & Parkman, Allen M, 1991. "Premerger Notification and the Incentive to Merge and Litigate," Journal of Law, Economics and Organization, Oxford University Press, vol. 7(1), pages 145-62, Spring.
- Besanko, David & Spulber, Daniel F, 1993. "Contested Mergers and Equilibrium Antitrust Policy," Journal of Law, Economics and Organization, Oxford University Press, vol. 9(1), pages 1-29, April.
- Andreea Cosnita-Langlais & Jean-Philippe Tropeano, 2013. "Ex post or ex ante? On the optimal timing of merger control," EconomiX Working Papers 2013-22, University of Paris West - Nanterre la Défense, EconomiX.
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