TY - BOOK AU - Bergès-Sennou,Fabian AU - Loss,Frédéric AU - Malavolti-Grimal,Estelle AU - Vergé,Thibaud TI - European Competition Policy Reform PY - 2002///. N1 - 12 N2 - The European Commission recently considered abolishing the notification system and to focus on a regime of ex post investigation. Our objective is to show that a better understanding of markets can justify this reform. When the precision of the competition authority’s analysis is not high enough, an ex ante control, like the notification system, is preferable. On the other hand, if decision accuracy improves, an ex post investigation regime achieves a higher social welfare. Classification JEL: L4, D8 UR - https://shs.cairn.info/journal-revue-economique-2002-3-page-437?lang=en&redirect-ssocas=7080 ER -