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Digital money as a medium of exchange and monetary policy in open economies

Author

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  • Ikeda, Daisuke

Abstract

The rise of digital money may bring about privately issued money that circulates across borders and coexists with public money. This paper uses an open-economy search model with multiple currencies to study the impact of such global money on monetary autonomy – the capacity of central banks to set a policy instrument. I show that the circulation of global money can entail a loss of monetary autonomy, but it can be preserved if government policy that limits the amount or use of global money for transactions is introduced or if the global currency is subject to the threat of counterfeiting. The result suggests that global digital money and monetary autonomy can be compatible.

Suggested Citation

  • Ikeda, Daisuke, 2025. "Digital money as a medium of exchange and monetary policy in open economies," Macroeconomic Dynamics, Cambridge University Press, vol. 29, pages 1-1, January.
    • Handle: RePEc:cup:macdyn:v:29:y:2025:i::p:-_160
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    Cited by:

    1. is not listed on IDEAS
    2. Takuji Fueki & Yutaka Soejima & Shunichi Yoneyama, 2022. "New Dimensions and Frontiers in Central Banking Summary of the 2022 BOJ-IMES Conference," Monetary and Economic Studies, Institute for Monetary and Economic Studies, Bank of Japan, vol. 40, pages 1-20, November.
    3. Ferrari Minesso, Massimo & Siena, Daniele, 2026. "Private money and public debt. U.S. Stablecoins and the global safe asset channel," Working Paper Series 3174, European Central Bank.
    4. Takuji Fueki & Yutaka Soejima & Shunichi Yoneyama, 2022. "New Dimensions and Frontiers in Central Banking Summary of the 2022 BOJ-IMES Conference," IMES Discussion Paper Series 22-E-13, Institute for Monetary and Economic Studies, Bank of Japan.
    5. Abad, Jorge & Nuño, Galo & Thomas, Carlos, 2025. "CBDC and the operational framework of monetary policy," Journal of Monetary Economics, Elsevier, vol. 151(C).

    More about this item

    JEL classification:

    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • E4 - Macroeconomics and Monetary Economics - - Money and Interest Rates
    • E5 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit
    • F31 - International Economics - - International Finance - - - Foreign Exchange

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