UniBe Discussion Paper 22-12, October 2022. PDF. We analyze retail central bank digital currency (CBDC) in a two-tier monetary system with bank deposit market power and externalities from liquidity transformation. Resource costs of liquidity provision determine the optimal monetary architecture and modified Friedman (1969) rules the optimal monetary policy. Optimal interest rates on reserves and CBDC differ. A calibration for the U.S. suggests a weak case for CBDC in the baseline but a...
Read More »“Monetary Policy with Reserves and CBDC: Optimality, Equivalence, and Politics,” CEPR, 2020
CEPR Discussion Paper 15457, November 2020. PDF (local copy). We analyze policy in a two-tiered monetary system. Noncompetitive banks issue deposits while the central bank issues reserves and a retail CBDC. Monies differ with respect to operating costs and liquidity. We map the framework into a baseline business cycle model with “pseudo wedges” and derive optimal policy rules: Spreads satisfy modified Friedman rules and deposits must be taxed or subsidized. We generalize the...
Read More »“Financial Policy,” CEPR, 2018
CEPR Discussion Paper 12755, February 2018. PDF. (Personal copy.) This paper reviews theoretical results on financial policy. We use basic accounting identities to illustrate relations between gross assets and liabilities, net debt positions and the appropriation of (primary) budget surplus funds. We then discuss Ramsey policies, answering the question how a committed government may use financial instruments to pursue its objectives. Finally, we discuss additional roles for financial...
Read More »Conference in Honor of Bob King at the Study Center Gerzensee
Jointly with the Journal of Monetary Economics and the Swiss National Bank, the Study Center Gerzensee organized a conference in honor of Bob King, long-term supporter of the Study Center. Program: PDF. Jaume Ventura’s discussion of a paper on trade and growth by Alvarez and Lucas: PDF. My discussion of a paper on debt and debt constraints by Bhandari, Evans, Golosov, and Sargent: PDF.
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