Reforms of financial regulation after the crisis of 2007-2009 raise the question of what is the relation between financial regulators and competition authorities. Should competition authorities play a role in financial regulation? Should they co-operate with financial regulators? Or should they...

The European Commission has proposed a new regulatory tool for the governance of digital markets. The Digital Markets Act (DMA) intents to limit the market behavior of so-called gatekeeper companies to ensure contestable and fair digital markets. We review the provisions of the DMA both from a...

Industry-wide voluntary agreements are touted as a means for corporations to take more corporate social responsibility (CSR). We study what type of joint CSR agreement induces firms to increase CSR efforts in a model of oligopolistic competition with differentiated products. Consumers have a...

The European Commission has proposed a new regulatory tool for the governance of digital markets. The Digital Markets Act (DMA) intents to limit the market behavior of socalled gatekeeper companies to ensure contestable and fair digital markets. We review the provisions of the DMA both from a...

This paper presents a broad retrospective evaluation of mergers and merger decisions in the digital sector. We first discuss the most crucial features of digital markets such as network effects, multi-sidedness, big data, and rapid innovation that create important challenges for competition...

The International Competition Network (ICN) celebrates its 20th birthday in 2020. It governs global competition by providing a cooperative forum for (mostly national) competition authorities from all around the world. In the absence of binding global competition rules and antitrust laws, it...

The paper discussed the economic theory of international antitrust institutions. Economic theory shows that non-coordinated competition policies of regimes that are territorially smaller than the international markets on which business companies compete violate cross-border allocative efficiency...

Lead jurisdiction models represent one option how to extend and enhance contemporary interagency cooperation among competition policy regimes. They constitute a multilateral, case-related form of cooperation that is suited to effectively create a one-stop-shop for the prosecution of...

This paper discusses the prospects and limits of combining the governance principles of multilevel governance and lead jurisdictions models for international antitrust. In doing so, it targets to contribute bridging a gap in the current world economic order, i.e. the lack of supranational...

This paper deals with the application of the principle of 'ne bis in idem' in EC antitrust enforcement. The principle of 'ne bis in idem', laid down in Article 4 of Protocol 7 to the European Convention on Human Rights and in Article 50 of the Charter of Fundamental Rights of the European Union,...