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A Simple Model of a Central Bank Digital Currency

Author

Listed:
  • Bineet Mishra
  • Eswar S. Prasad
Abstract
We develop a general equilibrium model that highlights the trade-offs between physical and digital forms of retail central bank money. The key differences between cash and central bank digital currency (CBDC) include transaction efficiency, possibilities for tax evasion, and, potentially, nominal rates of return. We establish conditions under which cash and CBDC can co-exist and show how government policies can influence relative holdings of cash, CBDC, and other assets. We illustrate how a CBDC can facilitate negative nominal interest rates and helicopter drops, and also how a CBDC can be structured to prevent capital flight from other assets.

Suggested Citation

  • Bineet Mishra & Eswar S. Prasad, 2023. "A Simple Model of a Central Bank Digital Currency," NBER Working Papers 31198, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:31198
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    Cited by:

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    3. Zhang, Runze & Li, Zhijun & Xiao, Chunqu & You, Jiwang, 2023. "New engines of economic growth: How digital currencies lead the way to growth in the era of digital economy," Economic Analysis and Policy, Elsevier, vol. 80(C), pages 1597-1617.
    4. 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).

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    More about this item

    JEL classification:

    • 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
    • E61 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Policy Objectives; Policy Designs and Consistency; Policy Coordination

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