Recent high-profile antitrust cases and policy proposals have put a spotlight on the relationship between firms’ access to big data and sustained competitive advantages in digital markets. In Europe, concerns about data-driven market power have led policy makers to propose far-reaching...

This article analyses the crucial role of user data for digital markets contestability and presents policy proposals devised to address growing concerns about the dominance of data-rich incumbents in digital markets. To this end, we discuss a data-driven theory of harm that would warrant ex-ante...

Across the world, regulators and policy makers are grappling with how to establish a competitive, safe and fair online environment that also safeguards users’ fundamental rights as citizens. Ahead of the European Commission’s Digital Markets Act (DMA), this book “Digital markets and online...