Antitrust policy in the United States and Europe relies increasingly on economic analysis. Economic theory and empirical analysis play a central role in antitrust decisions in the courts and in the formulation and enforcement of policy. Antitrust cases are argued using sophisticated economic...

This comment addresses the opinion of the Advocate General (AG) of the European Court of Justice on the pending case European Super League versus UEFA/FIFA. It takes a critical perspective on selected aspects of the opinion’s reasoning from a (sports) economics perspective. Highlighting the...

We investigate whether patents that are jointly held by legally independent companies help sustain product-market collusion. We use a simple model of repeated interactions to show that joint patents can serve collusive purposes. Our model generates two testable predictions: when joint patents...

This paper challenges the classical view on the role of litigation in Japan by examining a particular type of litigation, namely private antitrust litigation. It shows that the widely held idea that antitrust litigation in Japan is rare only holds when compared to the US, not Europe. The...

European enforcers have brought high-profile antitrust cases against the tech giants, and both activists and members of Congress are calling for action in the United States. This short note identifies ten hard-wired differences between the European and American enforcement regimes that make very...