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Central Bank Digital Currency and Banking: Macroeconomic Benefits of a Cash-Like Design

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  • Jonathan Chiu
  • Mohammad Davoodalhosseini

Abstract

Many central banks are considering issuing a central bank digital currency (CBDC). How will the CBDC affect the macroeconomy? Will its design matter? To answer these questions, we theoretically and quantitatively assess the effects of a CBDC on consumption, banking and welfare. Our model captures the competition between different means of payment and incorporates a novel general equilibrium feedback effect from transactions to deposit creation. The general equilibrium effects of a CBDC are decomposed into three channels: payment efficiency, price effects and bank funding costs. We show that a cash-like CBDC is more effective than a deposit-like CBDC in promoting consumption and welfare. Interestingly, a cash-like CBDC can also crowd in banking, even in the absence of bank market power. In a calibrated model, at the maximum, a cash-like CBDC can increase bank intermediation by 10.2% and welfare by 0.059% and capture up to 23.3% of the payment market.

Suggested Citation

  • Jonathan Chiu & Mohammad Davoodalhosseini, 2021. "Central Bank Digital Currency and Banking: Macroeconomic Benefits of a Cash-Like Design," Staff Working Papers 21-63, Bank of Canada.
    • Handle: RePEc:bca:bocawp:21-63
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    References listed on IDEAS

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    Cited by:

    1. Kwami Ahiabenu, 2022. "A Comparative Study of the Design Frameworks of the Ghanaian and Nigerian Central Banks’ Digital Currencies (CBDC)," FinTech, MDPI, vol. 1(3), pages 1-15, August.
    2. Philippe Bacchetta & Elena Perazzi, 2021. "CBDC as Imperfect Substitute for Bank Deposits: A Macroeconomic Perspective," Swiss Finance Institute Research Paper Series 21-81, Swiss Finance Institute.
    3. Max Fuchs, 2022. "CBDC as Competitor for Bank Deposits and Cryptocurrencies," MAGKS Papers on Economics 202210, Philipps-Universität Marburg, Faculty of Business Administration and Economics, Department of Economics (Volkswirtschaftliche Abteilung).
    4. Solikin M. Juhro & Denny Lie & Atet Rizki Wijoseno & Mohammad Aly Fikry, 2022. "Fiscal Policy Stance, Central Bank Digital Currency, And The Optimal Monetary-Macroprudential Policy Mix," Working Papers WP/01/2022, Bank Indonesia.
    5. Jonathan Chiu & Cyril Monnet, 2024. "Public and Private Money Creation for Distributed Ledgers: Stablecoins, Tokenized Deposits, or Central Bank Digital Currencies?," Staff Working Papers 24-35, Bank of Canada.

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    More about this item

    Keywords

    Digital currencies and fintech; Monetary policy; Monetary policy framework;
    All these keywords.

    JEL classification:

    • E50 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - General
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies

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