Oscar Soons
- 16 August 2023
- OCCASIONAL PAPER SERIES - No. 326Details
- Abstract
- How do central bank digital currencies (CBDC) impact the balance sheets of banks and central banks? To tackle this question empirically, we built a constraint optimisation model that allows for individual banks to choose how to respond to outflows of deposits, based on cost considerations and subject to the availability of reserves and collateral, within the individual banks and system wide, and for a given level of liquidity risk tolerance. We simulate the impact of a fictitious digital euro introduction in the third quarter of 2021, using data from over 2,000 euro area banks. That impact depends on i) the number of deposits withdrawn and the speed at which this occurs, ii) the liquidity available within the banking system at the time of the digital euro introduction, iii) the liquidity risk preferences of the markets and supervisors, iv) the bank’s business model, and v) the functioning of the interbank market. We find that a €3,000 digital euro holding limit per person, as suggested by Bindseil (2020) and Bindseil and Panetta (2020), would have been successful in containing the impact on bank liquidity risks and funding structures and on the Eurosystem balance sheet, even in extremely pessimistic scenarios.
- JEL Code
- E52 : Macroeconomics and Monetary Economics→Monetary Policy, Central Banking, and the Supply of Money and Credit→Monetary Policy
E58 : Macroeconomics and Monetary Economics→Monetary Policy, Central Banking, and the Supply of Money and Credit→Central Banks and Their Policies
G21 : Financial Economics→Financial Institutions and Services→Banks, Depository Institutions, Micro Finance Institutions, Mortgages
- 29 March 2023
- WORKING PAPER SERIES - No. 2801Details
- Abstract
- The bulk of euro-denominated cash is held for store of value purposes, with such holdings sharply increasing in times of high economic uncertainty. We develop a Diamond and Dy-bvig model with public money as a store of value and heterogeneous beliefs about bank stability that accounts for this evidence. Consumers who are sufficiently pessimistic prefer to hold cash. In our model, the introduction of a central bank digital currency (CBDC) as a store of value that is superior to cash leads to bank disintermediation as some depositors opt for switching to CBDC based on their beliefs. While CBDC partially replaces deposits, long-term lending decreases less than proportionally as remaining depositors are, on aver-age, more optimistic about bank stability and banks re-balance their portfolio accordingly. The appropriate calibration of CBDC design features such as remuneration and quantity limits can mitigate these effects. We study the individual and social welfare implications of introducing CBDC as a store of value.
- JEL Code
- E41 : Macroeconomics and Monetary Economics→Money and Interest Rates→Demand for Money
E58 : Macroeconomics and Monetary Economics→Monetary Policy, Central Banking, and the Supply of Money and Credit→Central Banks and Their Policies
G11 : Financial Economics→General Financial Markets→Portfolio Choice, Investment Decisions
G21 : Financial Economics→Financial Institutions and Services→Banks, Depository Institutions, Micro Finance Institutions, Mortgages
- 12 May 2022
- OCCASIONAL PAPER SERIES - No. 293Details
- Abstract
- In July 2021 the Eurosystem decided to launch the investigation phase of the digital euro project, which aims to provide euro area citizens with access to central bank money in an increasingly digitalised world. While a digital euro could offer a wide range of benefits, it could prompt changes in the demand for bank deposits and services from private financial entities (ECB, 2020a), with knock-on consequences for bank lending and resilience. By inducing bank disintermediation, a central bank digital currency, or CBDC, could in principle alter the transmission of monetary policy and impact financial stability. To prevent this risk, options to moderate CBDC take-up are being discussed widely.In view of the significant degree of uncertainty surrounding the design of a potential digital euro, its demand and the prevailing environment in which it would be introduced, this paper explores a set of analytical exercises that can offer insights into the consequences it could have for bank intermediation in the euro area.Based on assumptions about the degree of substitution between different forms of money in normal times, several take-up scenarios are calculated to illustrate how the potential demand for a digital euro might shape up. The paper then analyses the mechanisms through which commercial banks and the central bank could react to the introduction of a digital euro. Overall, effects on bank intermediation are found to vary across credit institutions in normal times and to be potentially larger in stressed times. Further, a potential digital euro’s capacity to alter system-wide bank run dynamics appears to depend on a few crucial factors, such as CBDC remuneration and usage limits.
- JEL Code
- E42 : Macroeconomics and Monetary Economics→Money and Interest Rates→Monetary Systems, Standards, Regimes, Government and the Monetary System, Payment Systems
E51 : Macroeconomics and Monetary Economics→Monetary Policy, Central Banking, and the Supply of Money and Credit→Money Supply, Credit, Money Multipliers
G21 : Financial Economics→Financial Institutions and Services→Banks, Depository Institutions, Micro Finance Institutions, Mortgages