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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

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    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.
    2. Christine A Parlour & Uday Rajan & Haoxiang Zhu, 2022. "When FinTech Competes for Payment Flows," The Review of Financial Studies, Society for Financial Studies, vol. 35(11), pages 4985-5024.
    3. Markus Brunnermeier & Jonathan Payne, 2022. "Platforms, Tokens, and Interoperability," Working Papers 2022-8, Princeton University. Economics Department..
    4. Williamson, Stephen D., 2022. "Central bank digital currency and flight to safety," Journal of Economic Dynamics and Control, Elsevier, vol. 142(C).
    5. Matutes, Carmen & Padilla, A. Jorge, 1994. "Shared ATM networks and banking competition," European Economic Review, Elsevier, vol. 38(5), pages 1113-1138, May.
    6. World Bank, 2024. "Interoperability Between Central Bank Digital Currency Systems and Fast Payment Systems," World Bank Publications - Reports 41812, The World Bank Group.
    7. Belleflamme, Paul & Peitz, Martin & Toulemonde, Eric, 2022. "The tension between market shares and profit under platform competition," International Journal of Industrial Organization, Elsevier, vol. 81(C).
    8. Verdier, Marianne, 2024. "Digital payments and bank competition," Journal of Financial Stability, Elsevier, vol. 73(C).
    9. Jose Aurazo & Holti Banka & Jon Frost & Anneke Kosse & Thomas Piveteau, 2024. "Central bank digital currencies and fast payment systems: rivals or partners?," BIS Papers, Bank for International Settlements, number 151, November.
    10. David Andolfatto, 2021. "Assessing the Impact of Central Bank Digital Currency on Private Banks," The Economic Journal, Royal Economic Society, vol. 131(634), pages 525-540.
    11. Jiawei Chen & Ulrich Doraszelski & Joseph E. Harrington, Jr., 2009. "Avoiding market dominance: product compatibility in markets with network effects," RAND Journal of Economics, RAND Corporation, vol. 40(3), pages 455-485, September.
    12. Jacques Crémer & Patrick Rey & Jean Tirole, 2000. "Connectivity in the Commercial Internet," Journal of Industrial Economics, Wiley Blackwell, vol. 48(4), pages 433-472, December.
    13. Jean-Charles Rochet & Jean Tirole, 2002. "Cooperation Among Competitors: Some Economics Of Payment Card Associations," RAND Journal of Economics, The RAND Corporation, vol. 33(4), pages 549-570, Winter.
    14. Jesus Fernandez-Villaverde & Daniel Sanches & Linda Schilling & Harald Uhlig, 2021. "Central Bank Digital Currency: Central Banking For All?," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 41, pages 225-242, July.
    15. Stephen Williamson, 2022. "Central Bank Digital Currency: Welfare and Policy Implications," Journal of Political Economy, University of Chicago Press, vol. 130(11), pages 2829-2861.
    16. Erik Feyen & Jon Frost & Leonardo Gambacorta & Harish Natarajan & Matthew Saal, 2021. "Fintech and the digital transformation of financial services: implications for market structure and public policy," BIS Papers, Bank for International Settlements, number 117, November.
    17. Lin William Cong & Simon Mayer, 2025. "Strategic Digitization in Currency and Payment Competition," NBER Working Papers 33593, National Bureau of Economic Research, Inc.
    18. Katz, Michael L & Shapiro, Carl, 1985. "Network Externalities, Competition, and Compatibility," American Economic Review, American Economic Association, vol. 75(3), pages 424-440, June.
    19. Ahnert, Toni & Hoffmann, Peter & Monnet, Cyril, 2025. "Payments and privacy in the digital economy," Journal of Financial Economics, Elsevier, vol. 169(C).
    20. Cyril Monnet & Hyun Song Shin & Jon Frost & Leonardo Gambacorta & Raphael Auer & Tara Rice, 2022. "Central Bank Digital Currencies: Motives, Economic Implications, and the Research Frontier," Annual Review of Economics, Annual Reviews, vol. 14(1), pages 697-721, August.
    21. Cong, Lin William & Mayer, Simon, 2025. "Strategic digitization in currency and payment competition," Journal of Financial Economics, Elsevier, vol. 168(C).
    22. 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.
    23. Todd Keister & Daniel Sanches, 2023. "Should Central Banks Issue Digital Currency?," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 90(1), pages 404-431.
    24. Mark Armstrong, 2006. "Competition in two‐sided markets," RAND Journal of Economics, RAND Corporation, vol. 37(3), pages 668-691, September.
    25. Paolo Siciliani, 2018. "Competition for retail deposits between commercial banks and non-bank operators: a two-sided platform analysis," Bank of England working papers 728, Bank of England.
    26. Anneke Kosse & Marc Glowka & Ilaria Mattei & Tara Rice, 2023. "Will the real stablecoin please stand up?," BIS Papers, Bank for International Settlements, number 141, November.
    27. Raphael Auer & Giulio Cornelli & Jon Frost, 2023. "Rise of the Central Bank Digital Currencies," International Journal of Central Banking, International Journal of Central Banking, vol. 19(4), pages 185-214, October.
    28. repec:bla:jindec:v:48:y:2000:i:4:p:433-72 is not listed on IDEAS
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    Cited by:

    1. Helmut Elsinger & Helmut Stix & Martin Summer, 2025. "Consumer preferences for a digital euro: insights from a discrete choice experiment in Austria," BIS Working Papers 1302, Bank for International Settlements.

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    More about this item

    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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