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CBDC and financial stability

Author

Listed:
  • Ahnert, Toni
  • Hoffmann, Peter
  • Leonello, Agnese
  • Porcellacchia, Davide

Abstract

What is the effect of Central Bank Digital Currency (CBDC) on financial stability? We answer this question by studying a model of financial intermediation with an endogenously determined probability of a bank run and a remunerated CBDC that provides consumers with an alternative to bank deposits. Consistent with concerns among policy-makers, higher CBDC remuneration raises bank fragility by increasing consumers’ withdrawal incentives. However, it also induces the bank to offer more attractive deposit contracts in an effort to retain funding, which reduces fragility. Accordingly, the overall relationship between bank fragility and CBDC remuneration is U-shaped. We evaluate the effects of different policy proposals aimed at reducing the financial stability implications of CBDC, and study extensions that allow for imperfect competition in deposit markets and bank risk-taking. JEL Classification: D82, G01, G21

Suggested Citation

  • Ahnert, Toni & Hoffmann, Peter & Leonello, Agnese & Porcellacchia, Davide, 2023. "CBDC and financial stability," Working Paper Series 2783, European Central Bank.
    • Handle: RePEc:ecb:ecbwps:20232783
    Note: 848910
    as

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    References listed on IDEAS

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    More about this item

    Keywords

    Bank Fragility; CBDC Remuneration; Central Bank Digital Currency; Financial Stability; Global Games;
    All these keywords.

    JEL classification:

    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • G01 - Financial Economics - - General - - - Financial Crises
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages

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