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. …

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 …

We study the evolution of EC merger decisions over the first 25 years of common European merger policy. Using a novel … dataset at the level of the relevant antitrust markets and containing all merger cases scrutinized by the Commission over the … definition and the complexity of the merger. Simple, linear probability models as usually applied in the literature overestimate …

We empirically assess the impact of the EU roaming regulation on mobile operators' average revenues per user (ARPU) and …-level data we find that the regulation decreased mobile operator's revenues per user, while it had no impact on tariffs during … the latest phase of the regulation. …

regulation on the probability of a crisis. We test this relationship by applying a Probit model of a non-linear specification to …: it rises as regulation stringency moves from low to medium levels and falls from medium to high levels. Countries located …

The roam-like-at-home regulation (RLAH) eliminated all mobile roaming surcharges to Eu-ropean consumers travelling … within the European Economic Area (EEA). We measure the causal impact of the regulation on EEA roaming traffic, using the … revenues. To evaluate the welfare effects of the regulation, we develop a framework that includes consumer surplus, retail and …