Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/94142
Authors: 
Duso, Tomaso
Guglery, Klaus
Szücs, Florian
Year of Publication: 
2010
Series/Report no.: 
SFB/TR 15 Discussion Paper 337
Abstract: 
Based on a database of 326 merger cases scrutinized by the European Commission between 1990 and 2007, we evaluate the economic impact of the change in European merger legislation in 2004. We ?rst propose a general framework to assess merger policy effectiveness, which is based on standard oligopoly theory and makes use of stockmarket reactions as an external assessment of the merger and the merger control decision. We then focus on four different dimensions of effectiveness: 1) legal certainty; 2) frequency and determinants of type I and type II errors; 3) rent-reversion achieved by different merger policy tools; and 4) deterrence of anti-competitive mergers. To infer the economic impact of the merger policy reform, we compare the results of our four tests before and after its introduction. Our results suggest that the policy reform seems to have been only a modest improvement of European merger policy.
Subjects: 
merger control
regulatory reform
EU Commission
event-study
JEL: 
L4
K21
C13
D78
Persistent Identifier of the first edition: 
Document Type: 
Working Paper

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