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Competing digital monies

Author

Listed:
  • Frost, Jon
  • Rochet, Jean-Charles
  • Shin, Huyn Song
  • Verdier, Marianne

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

  • Frost, Jon & Rochet, Jean-Charles & Shin, Huyn Song & Verdier, Marianne, 2025. "Competing digital monies," TSE Working Papers 25-1644, Toulouse School of Economics (TSE).
    • Handle: RePEc:tse:wpaper:130555
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    More about this item

    Keywords

    payments; CBDC; big tech; banks; stablecoins;
    All these keywords.

    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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