Tag Archives: Research

Discussion at the 2020 Bank of Canada Annual Economic Conference: The Future of Money and Payments: Implications for Central Banking. PDF.

CEPR Discussion Paper 15541, December 2020, with Martin Gonzalez-Eiras. PDF (local copy). We propose a flexible model of infectious dynamics with a single endogenous state variable and economic choices. We characterize equilibrium, optimal outcomes, static and dynamic externalities, and prove the following: (i) A lockdown generically is followed by policies to stimulate activity. (ii) Re-infection risk lowers the activity level chosen by the government early on and, for small static...

The Economist discusses the risk of CBDC-induced bank disintermediation. Their summary of the 2019 paper by Markus Brunnermeier and myself: If people prefer CBDCS, however, the central bank could in effect pass their funds on to banks by lending to them at its policy interest rate. “The issuance of CBDC would simply render the central bank’s implicit lender-of-last-resort guarantee explicit,” wrote Markus Brunnermeier of Princeton University and Dirk Niepelt of Study Centre Gerzensee...

SUERF Webinar “CBDC: State of play, practical challenges, open issues” with Ulrich Bindseil (ECB) and Morten Bech (BIS). Moderated by Dirk Niepelt. December 4, 2020, 2 pm. Webinar website. Presentation by Morten Bech. Presentation by Ulrich Bindseil. CBDC = MM0GA.

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...

Journal of Monetary Economics, with Martin Gonzalez-Eiras. PDF. (Appendix: PDF.) We propose a theory of tax centralization in politico-economic equilibrium. Taxation has dynamic general equilibrium implications which are internalized at the federal, but not at the regional level. The political support for taxation therefore differs across levels of government. Complementarities on the spending side decouple the equilibrium composition of spending and taxation and create a role for...

Economic Journal, forthcoming, with Harris Dellas. PDF. We study the optimal debt and investment decisions of a sovereign with private information. The separating equilibrium is characterized by a cap on the current account. A sovereign repays debt amount due that exceeds default costs in order to signal creditworthiness and smooth consumption. Accepting funding conditional on investment/reforms relaxes borrowing constraints, even when investment does not create collateral, but it...

Discussion of Antonio Fatás’ chapter in Elena Carletti, Stijn Claessens, Antonio Fatás, Xavier Vives, The Bank Business Model in the Post-Covid-19 World, CEPR/IESE report, London, June 2020. PDF. Antonio’s chapter offers a rich overview of the dramatic changes in the world of money and banking that we have seen in recent years. I focus on two themes: the nature of money and how it relates to these developments, and the government’s response to the structural changes we observe. I...

VoxEU, June 5, 2020, with Martin Gonzalez-Eiras. HTML. A comparison of epidemiological models for use in economic analyses, based on the CEPR discussion paper.

International Journal of Central Banking. PDF. This paper offers a macroeconomic perspective on the “Reserves for All” (RFA) proposal to let the general public hold electronic central bank money and transact with it. I propose an equivalence result according to which a marginal substitution of outside money (e.g., RFA) for inside money (e.g., deposits) does not affect macroeconomic outcomes. I identify key conditions for equivalence and argue that these conditions likely are...