In this essay, we describe antitrust analysis of horizontal mergers in U.S. retail markets. We begin by providing a … merger challenges brought by U.S. antitrust authorities over the last 50 years. We then provide a detailed discussion of the … brief overview of the economic and legal framework governing horizontal merger policy, and highlight key issues in analyzing …

online platforms. We analyze tracker-specific web browsing data to show how the prediction quality of consumer profiles …

This paper provides a comparative analysis of methods for the empirical ex post evaluation of merger control decisions … about the effects of systematic impact evaluations of merger decisions. …

-called more economic approach in the 2000s). This contribution reviews the state of the art in antitrust-oriented modern … industrial economics and, in particular, critically discusses open questions and possible limits of basing antitrust on modern … economics should be used to design better competition rules. -- competition policy ; antitrust ; modern industrial economics …

. This development is documented by various research papers, high-level exchanges between antitrust experts as well as an … horizontal mergers and to discuss applications of critical loss analysis in recent cases. The results suggest that the … suggest. In fact, the method has to be applied with great care in order to receive meaningful results. -- Antitrust …

earlier versions of this paper. -- Merger control ; European competition policy ; antitrust ; enforcement problems …The literature identifies a significant drop in merger control enforcement activity on both sides of the Atlantic … economics suggest that a lack of 'fit' between the 'new' economic approach to merger control and the 'old' institutional …

; merger control ; competition policy ; antitrust decisions ; comparative analysis …This paper provides a comparative analysis of methods for the empirical ex post evaluation of merger control decisions … about the effects of systematic impact evaluations of merger decisions. -- empirical methods of industrial organization …

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 …

operators. It is however unsettled whether behavioural antitrust may have a role in merger control. This paper deals with the … believe that the so-called behavioural antitrust should provide for a more accurate understanding of the conducts of economic … question whether behavioural economics can play an effective role in EU merger control and how it can be possibly incorporated …

I analyze empirically all European Commission's decisions regarding “unilateral effects” aspects of horizontal mergers … before and after the 2004 reform, which introduced the “significant impediment to effective competition” test in merger … policy. I find that, after the reform, the Commission did not change its stance toward mergers to monopoly or quasi …