The European Union’s Digital Markets Act (DMA) initiative, which is set to introduce ex ante regulatory rules for “gatekeepers” in online platform markets, is one of the most important pieces of legislation to emanate from Brussels in recent decades. It not only has the potential to...

The Opinion of Advocate General (‘AG’) Rantos in Servizio Elettrico Nazionale goes to the core of Article 102 TFEU. What is an abuse? What type of conduct is abusive? When does abusive conduct take place? What are the goals pursued by the prohibition of abuse of dominance, and who should be...

Tracking online user behavior is essential for targeted advertising and is at the heart of the business model of major online platforms. We analyze tracker-specific web browsing data to show how the prediction quality of consumer profiles varies with data size and scope. We find decreasing...

We use traffic data from around 5,000 web domains in Europe and United States to investigate the effect of the European Union’s General Data Protection Regulation (GDPR) on website visits and user behaviour. We document an overall traffic reduction of approximately 15% in the long-run and find...

The General Data Protection Regulation (GDPR) was enacted in the European Union in April 2016 and went into effect in May 2018. We study its impact on investment in new and emerging technology firms. Our findings indicate negative post-GDPR effects after its 2018 rollout on European ventures,...

Minority shareholdings have been on the regulatory agenda of competition authorities for some time. Recent empirical studies, however, draw attention to a new, thought provoking theory of harm: common ownership by institutional investors holding small, parallel equity positions in several...

Digital platforms operate in multisided markets providing services through the internet to two or more distinct groups of users, between which there are indirect network effects. Direct network effects are frequently present within each group. Therefore, online platforms usually present both...

Gegenstand dieses Beitrags ist ein Überblick über den Status quo des Strombinnenmarkts und die jüngsten Kommissionsvorschläge für eine Änderung der Stromrichtlinie und den Erlass einer Netznutzungsverordnung für grenzüberschreitende Stromlieferungen. Besonderes Augenmerk wird der Frage...