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CBDC: Banking and Anonymity

Author

Listed:
  • Yuteng Cheng

    (Bank of Canada)

  • Ryuichiro Izumi

    (Department of Economics, Wesleyan University)

Abstract

What is the optimal design of anonymity in a central bank digital currency (CBDC)? We examine this question in the context of bank lending by building a stylized model of anonymity in payment instruments. We specify the anonymity of payment instruments in two dimensions: The bank has no information about the entrepreneur’s investment, and the bank has less control over the entrepreneur’s profits. An instrument with higher anonymity may discourage the bank from lending, and thus, the entrepreneur strategically chooses payment instruments. Our analysis shows that introducing a CBDC with modest anonymity can improve welfare in one equilibrium, but can also destroy valuable information in bank lending, leading to inefficient lending in another equilibrium. Our results suggest that central banks should either make a CBDC highly anonymous or share CBDC data with banks to eliminate this bad equilibrium.

Suggested Citation

  • Yuteng Cheng & Ryuichiro Izumi, 2023. "CBDC: Banking and Anonymity," Wesleyan Economics Working Papers 2023-002, Wesleyan University, Department of Economics.
  • Handle: RePEc:wes:weswpa:2023-002
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    File URL: http://repec.wesleyan.edu/pdf/rizumi/2023002_izumi.pdf
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    References listed on IDEAS

    as
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    More about this item

    Keywords

    CBDC; Anonymity; Bank lending;
    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
    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation

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