Has the antitrust arsenal run out of novel theories or weapons? Think again. Recent scholarship has come to challenge conventional wisdom with the latest target of antitrust imagination being institutional investors, including diversified index funds. New economic research suggests that common...

According to well-established case-law of the European Court of Justice, in the European Union, parent companies can be fined for antitrust infringements by their subsidiaries. Furthermore, under a new EU Directive, signed into law on 26 November 2014, parent company liability is likely to be...

It is a well-established principle of EU competition law that parent companies can be fined for antitrust infringements by their subsidiaries. Under the new EU Directive on Antitrust Damages Actions, parent company liability is likely to be extended to private antitrust suits. In the United...

This article examines the meaning and scope of the notion of anticompetitive effects in EU competition law. It does so by bringing together several strands of the case law (and this across all provisions, namely Articles 101 and 102 TFEU and merger control). The analysis is structured around a...

The paper provides an overview of the enforcement activity of the Spanish competition authority in the digital economy. It explores, in particular, (i) the authority's approach to market definition and the assessment of market power; (ii) the main theories of harm developed in its decisions; and...

This paper considers the interpretation of the substantive test laid down in Article 2 of Regulation 139/2004. It focuses on horizontal mergers in the so-called ‘gap’ cases, which would not result in the creation or the strengthening of a (single or collective) dominant position. In its...

The literature shows that horizontal shareholding engenders significant anticompetitive effects and that no suitable instrument exists within European competition law which reliably and effectively can be applied to curtail such intrinsic effects. This Article analyses several proposals which...

In the American Needle case the Supreme Court will consider whether the NFL’s decision to give an exclusive trademark license to one firm should be counted as “unilateral” on the NFL’s part, or rather as the concerted joint venture activity of the NFL’s individual member teams. The...