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Central bank digital currency: Payment choices and commercial bank profitability

Author

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  • Son, Jaemin
  • Ryu, Doojin
  • Webb, Robert I.
Abstract
This study examines how the issuance of a central bank digital currency (CBDC) affects consumers' payment instrument choices, asset allocation decisions, and the profitability of financial intermediaries. Specifically, we advance a theoretical model in which introducing an interest-bearing CBDC expands market participants' payment and investment options but also poses a potential threat to financial intermediaries if it raises their borrowing costs significantly. The existence of a network externality further complicates the analysis by affecting consumers' choice of payment mechanism. Our results suggest that the issuance of a CBDC is a double-edged sword for an economy. Although it provides additional payment and investment options for market participants, it increases competition and weakens financial intermediaries' margins.

Suggested Citation

  • Son, Jaemin & Ryu, Doojin & Webb, Robert I., 2023. "Central bank digital currency: Payment choices and commercial bank profitability," International Review of Financial Analysis, Elsevier, vol. 90(C).
    • Handle: RePEc:eee:finana:v:90:y:2023:i:c:s1057521923003903
    DOI: 10.1016/j.irfa.2023.102874
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    More about this item

    Keywords

    Central bank digital currency; Financial stability; Interest rate; Payment instrument;
    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

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