The Digitalization of Money∗ Markus K. Brunnermeier Harold James Princeton University Princeton University Jean-Pierre Landau Sciences Po August 2019 Abstract The ongoing digital revolution may lead to a radical departure from the tradi- tional model of monetary exchange. We may see an unbundling of the separate roles of money, creating fiercer competition among specialized currencies. On the other hand, digital currencies associated with large platform ecosystems may lead to a re-bundling of money in which payment services are packaged with an array of data services, encouraging differentiation but discouraging interoperability between platforms. Digital currencies may also cause an upheaval of the international mon- etary system: countries that are socially or digitally integrated with their neighbors may face digital dollarization, and the prevalence of systemically important platforms could lead to the emergence of digital currency areas that transcend national borders. Central bank digital currency (CBDC) ensures that public money remains a relevant unit of account. Keywords: Digital Money, Digital Currency Area, Digital Dollarization ∗Contact:
[email protected]. We are grateful to Joseph Abadi for his numerous contributions to this project. 1 1 Introduction Digitalization has revolutionized money and payments systems. Although digital money itself is not new to modern economies, digital currencies now facilitate instantaneous peer-to-peer transfers of value in a way that was previously impossible. New currencies will emerge as the central lynchpins of large, systemically important social and economic platforms that transcend national borders, redefining the ways in which payments and users’ data interact. The advent of these new monies could reshape the nature of cur- rency competition, the architecture of the international monetary system, and the role of government-issued public money.