Article 20 of the General Data Protection Regulation (GDPR) gave consumers in the European Union the right to port their personal data between digital service providers. We critically assess the economic implications of this new right in the light of the extant economic literature and with a...

Algorithmic learning gives rise to a data-driven network effects, which allow a dominant platform to reinforce its dominant market position. Data-driven network effects can also spill over to related markets and thereby allow to leverage a dominant position. This has led policymakers to propose...

It is crucial for content providers (CPs) to appear prominently on dominant online platforms in order to attract consumer demand. Platforms often offer content providers prominence in return for a monetary compensation (e.g., a sponsored listing). We consider the case where CPs can pay the...

Data sharing between firms is widely believed to promote firms’ ability to innovate and compete. To this end, Business-to-Business (B2B) data sharing platforms, such as 'GAIA-X', facilitate the sharing of data between firms. However, many of these initiatives struggle. Although firms find it...

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...