This study examines whether antitrust risk affects firms’ disclosure of mergers and acquisitions (M&As). Due to regulatory exemptions, deals that fall below a size threshold escape formal antitrust scrutiny at the time of the merger. These “non-reported” deals can have important...

Since the introduction of a formal commitments procedure in EU antitrust policy (Article 9 of Council Regulation 1/2003), the European Commission has extensively settled cases of alleged anticompetitive practices. In this paper, we use a formal model of law enforcement (Bebchuk, 1984; Shavell, 1988)...

In a tort law regime established on the basis of corrective justice considerations, causation requirements will tend to play a predominant role in regulating the damages claims brought forward. The requirement of the causal link between the harm suffered and the anticompetitive conduct in...

This paper analyses the profitability of horizontal mergers in a Stackelberg model and their impact on welfare when there is uncertainty about the marginal costs of the newly merged firms. The authors consider that the merging firms decide their production strategy knowing the actual value of...

Some path-breaking work on mergers takes efficiency gains for granted, or assumes that firms have perfect knowledge when taking merger decisions. In practice, firms and competition authorities cannot know exact future efficiency gains, prior to merger consummation. This paper analyzes horizontal...

The explosive growth in companies' exploitation of big data is drawing intense scrutiny from European antitrust authorities. EU Competition Commissioner Margrethe Vestager has promised to “keep a close eye on how companies use data” and a number of European antitrust authorities have...