The authors are grateful to Sabrina Howell, Mina Lee, Maarten van Oordt, Alexander Gershkov, Mario Pascoa, and Evgeny Lyandres for useful comments and discussions. The authors benefited from comments by participants at the UWA Blockchain, Cryptocurrency and Fintech Conference (2020); the Paris Fintech and Cryptofinance Webinar series (2020); the Sixth P2P Financial Systems International Workshop; the Crypto and Blockchain Economics Research Conference (2021); and the Financial Management Association Annual Meeting (2021).