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Journal of Financial Economics Vol. 168 2025

Strategic digitization in currency and payment competition

Lin William Cong; Simon Mayer

open access

Abstract

We model the competition between digital forms of fiat money and private digital money. Countries digitize their currencies–by upgrading existing or launching new payment systems (including CBDCs)–to compete with foreign fiat currencies and private digital money. A pecking order emerges: less dominant currencies digitize earlier, reflecting a first-mover advantage; dominant currencies delay digitization until they face competition; the weakest currencies forgo digitization. However, delayed digitization allows private digital money to gain widespread adoption, eventually weakening fiat money’s role. We highlight how geopolitical considerations, stablecoins, and interoperability between fiat and private digital money shape the dynamics of currency competition.

DOI
10.1016/j.jfineco.2025.104055
Volume
168
Pages
104055
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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