The ministerial proposal for a 10th amendment of the German competition law particularly addresses abuse control and seeks to tighten this pillar of competition policy against the background of the challenges from the digital economy. Next to extending the classic policy instruments of abuse...

The economic literature on the superstar phenomenon provides empirical evidence on different types of stars, above all athletes and musicians. A new and, to our best knowledge, unexplored area of this star theory arouse with the development of social media markets. In this paper, we analyse a...

Can competition of competition laws be a feasible concept that should play an important role in an international order for the worldwide protection of competition? The authors will introduce four different types of regulatory competition that allow for a more differentiated analysis of...

German Abstract: Smart Fitness bezeichnet die digitale Erfassung individualisierter Fitness- und Lifestyledaten mit Hilfe von Wearables, Smartwatches, Apps und anderen Instrumenten. Die so generierten Daten sind für eine Reihe von Akteure wie Sportartikelhersteller, Pharmaunternehmen,...

Conceived as a theory of competitive harm, self-preferencing has been at the core of recent European landmark cases (e.g., Google Android, Google Shopping). In the context of EU competition law, beyond the anti-competitive leveraging effect, self-preferencing may lead to vertical and horizontal...

The controversy around the breakaway European Super League, set to conquer the UEFA Champions League, and the surrounding antitrust proceedings revive the academic discussion about the monopoly power of sport-internal governing bodies (like the UEFA), the justification for and limits of their...

The paper applies economic theories to give an overview of the emerging phenomenon of digital personal assistants (DPAs). A DPA is an intelligent automated system that interacts with the user through a dialogue in natural language, and meanwhile applying third-party services to obtain...

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...

Experts' voting behavior is conjectured to be more objective than peer voting (own group/peers) and public voters (everyone interested), who are supposedly influenced by all sorts of subjective aspects. We examine differences in voting behavior between these groups by analyzing the voting...