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Competing digital monies

Author

Listed:
  • Jon Frost

    (BIS - Bank for International Settlements)

  • Jean-Charles Rochet

    (TSE-R - Toulouse School of Economics - UT Capitole - Université Toulouse Capitole - Comue de Toulouse - Communauté d'universités et établissements de Toulouse - EHESS - École des hautes études en sciences sociales - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement)

  • Huyn Song Shin

    (BIS - Bank for International Settlements)

  • Marianne Verdier

    (CRED - Centre de Recherche en Economie et Droit - Université Paris-Panthéon-Assas)

Abstract

We compare three competing digital payment instruments: bank deposits, private stablecoins and central bank digital currencies (CBDCs). A simple theoretical model integrates the theory of two-sided markets and payment economics to assess the benefits of interoperability through a retail fast payment system organised by the central bank. We show an equivalence result between such a fast payment system and a retail CBDC. We find that both can improve financial integration and increase trade volume, but also tend to reduce the market shares of incumbent intermediaries.

Suggested Citation

  • Jon Frost & Jean-Charles Rochet & Huyn Song Shin & Marianne Verdier, 2025. "Competing digital monies," Working Papers hal-05081338, HAL.
    • Handle: RePEc:hal:wpaper:hal-05081338
    Note: View the original document on HAL open archive server: https://hal.science/hal-05081338v1
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    References listed on IDEAS

    as
    1. Jonathan Chiu & Seyed Mohammadreza Davoodalhosseini & Janet Jiang & Yu Zhu, 2023. "Bank Market Power and Central Bank Digital Currency: Theory and Quantitative Assessment," Journal of Political Economy, University of Chicago Press, vol. 131(5), pages 1213-1248.
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    4. Jean‐Charles Rochet & Jean Tirole, 2006. "Two‐sided markets: a progress report," RAND Journal of Economics, RAND Corporation, vol. 37(3), pages 645-667, September.
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    Keywords

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    JEL classification:

    • E42 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Monetary Sytsems; Standards; Regimes; Government and the Monetary System
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • L51 - Industrial Organization - - Regulation and Industrial Policy - - - Economics of Regulation
    • O31 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Innovation and Invention: Processes and Incentives

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