The fascinating untold story of digital cash and its creators—from experiments in the 1970s to the mania over Bitcoin and other cryptocurrencies Bitcoin may appear to be a revolutionary form of digital cash without precedent or prehistory. In fact, it is only the best-known recent experiment in a long line of similar efforts going back to the 1970s. But the story behind cryptocurrencies like Bitcoin and its blockchain technology has largely been untold—until now. In Digital Cash, Finn Brunton reveals how technological utopians and political radicals created experimental money to bring about their visions of the future: to protect privacy, bring down governments, prepare for apocalypse, or launch a civilization of innovation and abundance that would make its creators immortal. Filled with marvelous characters, stories, and ideas, Digital Cash is an engaging and accessible account of the strange origins and remarkable technologies behind today's cryptocurrency explosion.

A cutting-edge look at how accelerating financial change, from the end of cash to the rise of cryptocurrencies, will transform economies for better and worse. We think weÕve seen financial innovation. We bank from laptops and buy coffee with the wave of a phone. But these are minor miracles compared with the dizzying experiments now underway around the globe, as businesses and governments alike embrace the possibilities of new financial technologies. As Eswar Prasad explains, the world of finance is at the threshold of major disruption that will affect corporations, bankers, states, and indeed all of us. The transformation of money will fundamentally rewrite how ordinary people live. Above all, Prasad foresees the end of physical cash. The driving force wonÕt be phones or credit cards but rather central banks, spurred by the emergence of cryptocurrencies to develop their own, more stable digital currencies. Meanwhile, cryptocurrencies themselves will evolve unpredictably as global corporations like Facebook and Amazon join the game. The changes will be accompanied by snowballing innovations that are reshaping finance and have already begun to revolutionize how we invest, trade, insure, and manage risk. Prasad shows how these and other changes will redefine the very concept of money, unbundling its traditional functions as a unit of account, medium of exchange, and store of value. The promise lies in greater efficiency and flexibility, increased sensitivity to the needs of diverse consumers, and improved market access for the unbanked. The risk is instability, lack of accountability, and erosion of privacy. A lucid, visionary work, The Future of Money shows how to maximize the best and guard against the worst of what is to come.

This paper marks the launch of a new IMF series, Fintech Notes. Building on years of IMF staff work, it will explore pressing topics in the digital economy and be issued periodically. The series will carry work by IMF staff and will seek to provide insight into the intersection of technology and the global economy. The Rise of Digital Money analyses how technology companies are stepping up competition to large banks and credit card companies. Digital forms of money are increasingly in the wallets of consumers as well as in the minds of policymakers. Cash and bank deposits are battling with so-called e-money, electronically stored monetary value denominated in, and pegged to, a currency like the euro or the dollar. This paper identifies the benefits and risks and highlights regulatory issues that are likely to emerge with a broader adoption of stablecoins. The paper also highlights the risks associated with e-money: potential creation of new monopolies; threats to weaker currencies; concerns about consumer protection and financial stability; and the risk of fostering illegal activities, among others.

The level and trend in cash use in a country will influence the demand for central bank digital currency (CBDC). While access to digital currency will be more convenient than traveling to an ATM, it only makes CBDC like a bank debit card—not better. Demand for digital currency will thus be weak in countries where cash use is already very low, due to a preference for cash substitutes (cards, electronic money, mobile phone payments). Where cash use is very high, demand should be stronger, due to a lack of cash substitutes. As the demand for CBDC is tied to the current level of cash use, we estimate the level and trend in cash use for 11 countries using four different measures. A tentative forecast of cash use is also made. After showing that declining cash use is largely associated with demographic change, we tie the level of cash use to the likely demand for CBDC in different countries. In this process, we suggest that one measure of cash use is more useful than the others. If cash is important for monetary policy, payment instrument competition, or as an alternative payment instrument in the event of operational problems with privately supplied payment methods, the introduction of CBDC may best be introduced before cash substitutes become so ubiquitous that the viability of CBDC could be in doubt.

Money is changing and this may mean a new world order. David Birch sets out the economic and technological imperatives concerning digital money, and discusses its potential impact. Tensions will inevitably arise: between old and new, between public and private, and, most importantly, between East and West. This book contributes to the debate that we must have to shape the International Monetary and Financial System of the near future.

There is a small and growing literature that explores the impact of digitization in a variety of contexts, but its economic consequences, surprisingly, remain poorly understood. This volume aims to set the agenda for research in the economics of digitization, with each chapter identifying a promising area of research. "Economics of Digitization "identifies urgent topics with research already underway that warrant further exploration from economists. In addition to the growing importance of digitization itself, digital technologies have some features that suggest that many well-studied economic models may not apply and, indeed, so many aspects of the digital economy throw normal economics in a loop. "Economics of Digitization" will be one of the first to focus on the economic implications of digitization and to bring together leading scholars in the economics of digitization to explore emerging research.

Following the companion paper on the new policy challenges related to the adoption of digital forms of money, this paper presents an operational strategy for the IMF to continue delivering on its mandate of ensuring domestic and international financial and economic stability. The paper begins by summarizing the forces driving the adoption of digital forms of money, and the new policy questions that emerge. It then focusses on how the IMF’s core activities and output will need to evolve, including surveillance, capacity development, and analytical foundations. It ends by discusses how the IMF intends to partner with other organization, and to grow and structure internal resources to fulfill this vision.