Gur Huberman, Jacob Leshno, Ciamac C. Moallemi, 16 December 2017

Cryptocurrencies have caught the attention of industry, academia, and the public at large. This column analyses an economic model of a cryptocurrency system featuring user-generated transaction fees, focusing on Bitcoin as the leading example. The Bitcoin system requires significant congestion to raise revenue and fund infrastructure or risk collapse in the long term. Moreover, the current design of the system – specifically the processing of large but infrequent blocks of transactions – makes it less efficient at raising revenue.

Michael Bordo, Andrew Levin, 23 September 2017

Central banks across the world are considering sovereign digital currencies. This column argues that these currencies could transform all aspects of the monetary system and facilitate the systematic and transparent conduct of monetary policy. In particular, a central bank digital currency can serve as a practically costless medium of exchange, a secure store of value, and a stable unit of account. To achieve this, the currency would be account based and interest bearing, and the monetary policy framework would target true price stability.

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