Designing Central Banks

This book looks at independence, how central banks can actually influence their respective economies, goals responsibilities and governance with contributions from such scholars as Anne Sibert and Forrest Capie.

We study the optimal design of a central bank digital currency (CBDC) in an environment where agents sort into cash, CBDC and bank deposits according to their preferences over anonymity and security; and where network effects make the convenience of payment instruments dependent on the number of their users. CBDC can be designed with attributes similar to cash or deposits, and can be interest-bearing: a CBDC that closely competes with deposits depresses bank credit and output, while a cash-like CBDC may lead to the disappearance of cash. Then, the optimal CBDC design trades off bank intermediation against the social value of maintaining diverse payment instruments. When network effects matter, an interest-bearing CBDC alleviates the central bank's tradeoff.

Yes, it makes a lot of sense. This paper studies how to design simple loss functions for central banks, as parsimonious approximations to social welfare. We show, both analytically and quantitatively, that simple loss functions should feature a high weight on measures of economic activity, sometimes even larger than the weight on inflation. Two main factors drive our result. First, stabilizing economic activity also stabilizes other welfare relevant variables. Second, the estimated model features mitigated inflation distortions due to a low elasticity of substitution between monopolistic goods and a low interest rate sensitivity of demand. The result holds up in the presence of measurement errors, with large shocks that generate a trade-off between stabilizing inflation and resource utilization, and also when ensuring a low probability of hitting the zero lower bound on interest rates.

This book makes a practical contribution to increased understanding of payment system design and management and of the relationship between the payment system and monetary policy. The authors of the twelve papers included in the book are central banking experts from around the world who draw on their experiences in providing technical assistance to the central banks of the countries of the former U.S.S.R.

In the past decades, much work has been geared toward solving the problem of time inconsistency in monetary policy and analyzing the coordination problem between fiscal and monetary policy. This paper provides a review of the theoretical background to these theories, while also focusing on their inherent problems. It concludes that while the literature makes a strong case for central bank independence, more work should be done in the area of determining the desirable degree of independence with a view to the interplay between fiscal and monetary policy.

Digitalization is reshaping economic activity, shrinking the role of cash, and spurring new digital forms of money. Central banks have been pondering wheter and how to adapt. One possibility is central bank digital currency (CBDC)-- a widely accessible digital form of fiat money that could be legal tender. This discussion note proposes a conceptual framework to assess the case for CBDC adoption from the perspective of users and central banks. It discusses possible CBDC designs, and explores potential benefits and costs, with a focus on the impact on monetary policy, financial stability, and integrity. This note also surveys research and pilot studies on CBDC by central banks around the world.