affected firms' margins and merger activity. We find that these programs, which give amnesty to cartel conspirators that … cooperate with antitrust authorities, reduced the gross margins of the affected firms. However, firms reacted to new regulations … merger review process might be a prerequisite for strengthening anti-collusion enforcement …

Introduction -- Mergers and merger policy in the U.S. : an overview -- Evaluating merger outcomes -- Guide to merger … analysis using difference-in-differences (Daniel Greenfield) -- Merger retrospectives : two studies -- Mergers and product … prices -- Merger policy and remedies -- Retrospective studies of groups of mergers -- Summary of findings and concluding …

We show that the number of merger proposals (frequency-based deterrence) is a more appropriate indicator of underlying … changes in merger policy than the relative anti-competitiveness of merger proposals (composition-based deterrence). This has … strong implications for the empirical analysis of the deterrence effects of merger policy enforcement, and potential …

We study the evolution of the EC’s merger decision procedure over the first 25 years of European competition policy …. Using a novel dataset constructed at the level of the relevant markets and containing all merger cases over the 1990 … importance of barriers to entry and the risk of foreclosure has increased in the EC’s merger assessment following the 2004 merger …

This paper analyses all final merger decisions by the European Commission from the beginning of 1990 up to the end of … 2019. We use a novel dataset, containing information about 6245 merger cases from all economic sectors and combining all … sorts of decisions, inclusive of withdrawn and prohibited cases. Using text analyses techniques, we first analyse merger …

We study optimal merger policy in a dynamic model in which the presence of scale economies implies that firms can … computationally, allows firms to invest or propose mergers according to the relative profitability of these strategies. An antitrust … authority is able to block mergers at some cost. We examine the optimal policy when the antitrust authority can commit to a …