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Central bank digital currency and monetary policy

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  • Davoodalhosseini, Seyed Mohammadreza

Abstract

Many central banks are contemplating whether to issue a central bank digital currency (CBDC). A CBDC has certain potential benefits, including the possibility that it can bear interest. However, using a CBDC is costly for agents. I study the optimal monetary policy when only cash, only a CBDC, or both cash and a CBDC are available to agents. If the cost of using a CBDC is not too high, more efficient allocations can be implemented by using a CBDC than using cash, and the first best can be achieved. Having both cash and a CBDC available may result in lower welfare than in the cases where only cash or only a CBDC is available. The welfare gains of introducing a CBDC are estimated under various scenarios for the United States and Canada. For example, if the cost of using a CBDC relative to cash is around 0.25% of the transaction value, introducing a CBDC can lead to an increase of 0.12–0.21% consumption for the United States and 0.04–0.07% for Canada.

Suggested Citation

  • Davoodalhosseini, Seyed Mohammadreza, 2022. "Central bank digital currency and monetary policy," Journal of Economic Dynamics and Control, Elsevier, vol. 142(C).
    • Handle: RePEc:eee:dyncon:v:142:y:2022:i:c:s0165188921000853
    DOI: 10.1016/j.jedc.2021.104150
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    More about this item

    Keywords

    Central bank digital currency; Cash; Monetary policy;
    All these keywords.

    JEL classification:

    • E42 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Monetary Sytsems; Standards; Regimes; Government and the Monetary System
    • E50 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - General

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