This paper provides a systematic evaluation of the different types of digital currencies. We express skepticism regarding centralized digital currencies and therefore focus our economic analysis on private digital currencies. Specifically, we highlight the potential for private digital...

We demonstrate theoretically that Bitcoin's limited adoption arises as an equilibrium outcome rather than as a short-lived property. Our results are driven by negative network effects which arise due to Bitcoin's need for consensus and the existence of network delay. As the Bitcoin network...

This paper provides an empirical overview of the largely unexplored public blockchain ecosystem. Our overview highlights that only a few blockchains dominate the ecosystem although no single blockchain, not even Bitcoin, dominates uniformly. We explain our empirical findings with a simple...

The COVID-19 pandemic provides a unique setting in which to evaluate the importance of a country's fiscal capacity in explaining the relation between economic growth shocks and sovereign default risk. For a sample of 30 developed countries, we find a positive and significant sensitivity of...