Online reviews are an important source of information on products and services for consumers and firms. Although incentivizing high-quality reviews is an important business objective for any review platform, we show that it is also possible to identify anonymous reviewers by exploiting the...

The importance of digital platforms and related data-driven business models is ever increasing and poses challenges for the workability of competition in the respective markets (tendencies towards dominant platforms, paying-with-data instead of traditional money, privacy concerns, etc.). Due to...