Switching costs and network effects bind customers to vendors if products are incompatible, locking customers or even markets in to early choices. Lock-in hinders customers from changing suppliers in response to (predictable or unpredictable) changes in efficiency, and gives vendors lucrative ex...

This paper asks whether the large amounts of digital data that are typically observed on large technology platforms - such as Google, Facebook, Uber and Amazon - typically give rise to structural conditions that would lead to antitrust concerns. In particular, I evaluate whether digital data...

Während die meisten Netzsektoren wie etwa der Telekommunikations- oder der Flugsektor längst wettbewerblich organisiert sind, verbleibt der Trinkwassersektor in den meisten Ländern als letzte Bastion vertikal integrierter Versorgungsmonopole.Die Arbeit untersucht unter konsequenter Anwendung...