At their essence, blockchains are digital sequences of numbers coded into computer software that permit the secure exchange, recording, and broadcasting of transactions between individual users operating anywhere in the world with Internet access. Like most technological changes, the development...

Using simple but rigorously defined mathematical models, Thomas Quint and Martin Shubik explore monetary control in a simple exchange economy. Examining how money enters, circulates, and exits an economy, they consider the nature of trading systems and the role of government authority in the...

Writing in the June 1965 issue of theEconomic Journal, Harry G. Johnson begins with a sentence seemingly calibrated to the scale of the book he set himself to review: "The long-awaited monetary history of the United States by Friedman and Schwartz is in every sense of the term a monumental...