We analyze evidence production in merger control as a delegation problem in an inquisitorial competition policy system …. The antitrust agency’s incentives to produce evidence on the efficiency of a merger proposal depend critically on its … implemented only after evidence on the efficiency of a merger proposal has been produced. …

scrutinized by the European Commission between 1995 and 2014. We show that concentration, as measured by the market-specific post-merger … dimension analyzed. Strict past merger enforcement negatively correlates with concentration. Yet, this effect is stronger in the …

that would prevent a merger from harming consumers for 1,014 mergers affecting 12,325 antitrust markets scrutinized by the … concerns about the Commission’s merger enforcement being too lax. …

differential merger outcomes are caused mostly by firms' technology or product market attributes. Furthermore, empirical merger …. We allow the merger responses to vary across firms, even after controlling for regressors, and apply a random …

We discuss the main Theories of Harm in EU merger control and their evolution since the 1990s. We present stylised … facts and trends using data extracted from EU merger decisions by natural language processing tools. EU merger policy has … evidence used. The introduction of the new Merger Regulation in 2004, which led to a change in the substantive test, also …

We modify the UPP test of Farrell and Shapiro (2010) to take into account the possibility that a merger weakens (or … eliminates) a vertical supply relationship. After deriving a general effect of the merger, we provide an example of simple …

This paper presents a broad retrospective evaluation of mergers and merger decisions in the digital sector. We first … that create important challenges for competition policy. We show that these features have been key determinants of the … theories of harm in major merger cases in the past few years. We then analyse the characteristics of almost 300 acquisitions …