Central Bank Digital Currencies: Experimental Evidence of Deposit Conversion

Abstract In this paper, we provide unique experimental evidence of depositors’ behaviour in presence of a possibility to convert commercial bank deposits into central bank digital currency (CBDC). Theoretically and experimentally we analyse whether such an option incentivises bank runs. We find that the availability of the deposit conversion option does not lead to a significant outflow of deposits. However, when conversion is restricted, depositors are eager to actively use it as a coordination tool. These findings highlight the importance of considering coordination and decision time in determining the choice to convert deposits into CBDC. Our study evidences that policy-makers should balance accessibility and control measures to maintain financial stability, ensuring that CBDC implementation supports the resilience of the banking system.