Tag Archives: Research

CEPR Discussion Paper 16906, January 2022, with Martin Gonzalez-Eiras. PDF (local copy). We investigate how politico-economic factors shaped government responses to the spread of COVID-19. Our simple framework uses epidemiological, economic and politico-economic arguments. Confronting the theory with US state level data we find strong evidence for partisanship even when we control for fundamentals including the electorate’s political views. Moreover, we detect an important role for the...

Chapter 5 in the CEPR eBook, November 24, 2021. HTML. From the conclusion: From a macroeconomic perspective, central banks can largely neutralise the consequences of CBDC. What is highly uncertain, however, is whether they would choose to do so – the political risks of ‘Reserves for All’ are first-order. The decision for or against CBDC thus should not only reflect the assessment of economic trade-offs, but also whether societies are confident in their ability to efficiently manage...

CEPR eBook, November 24, 2021. HTML. VoxEU, November 24, 2021. HTML. Retail central bank digital currency has morphed from an obscure fascination of technophiles and monetary theorists into a major preoccupation of central bankers. Pilot projects abound and research on the topic has exploded as private sector initiatives such as Libra/Diem have focused policymakers’ minds and taken the status quo option off the table. In this eBook, academics and policymakers review what we know...

Economic Journal, February 2021, with Harris Dellas. PDF. We study the optimal debt and investment decisions of a sovereign with private information. The separating equilibrium is characterised 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...

VoxEU, February 5, 2021. HTML. Based on CEPR DP 15457, I assess possible implications of the introduction of retail CBDC for bank profits. The model implies annual implicit subsidies to U.S. banks of up to 0.8 percent of GDP during the period 1999-2017.

Panel with Elga Bartsch, Agnès Bénassy-Quéré, Giancarlo Corsetti, Olivier Garnier, and Charles Wyplosz. Moderated by Tobias Broer. Elga Bartsch, Agnès Bénassy-Quéré, Giancarlo Corsetti, Xavier Debrun: Geneva Report 23 | It’s All in the Mix: How Monetary and Fiscal policies Can Work or Fail Together. Event at PSE. My comments on the report.

VoxEU, January 11, 2021, with Martin Gonzalez-Eiras. HTML. Based on the CEPR discussion paper, we draw conclusions for the pandemic endgame. We explain why Israel will likely impose a harsher lockdown than other countries, especially poor ones. And why we should expect “inverse lockdowns”—measures to stimulate social interaction.

Olivier Blanchard, Public Debt and Low Interest Rates, AER 2019, 109(4). Robert Barro, r Minus g, NBER wp 28002, October 2020. Dmitriy Sergeyev and Neil Mehrotra, Debt Sustainability in a Low Interest World, CEPR dp 15282, September 2020. Stan Olijslagers, Nander de Vette, and Sweder van Wijnbergen, Debt Sustainability when r−g<0: No Free Lunch after All, CEPR dp 15478, November 2020. Ricardo Reis, The Constraint on Public Debt when r<g But g<m, Mimeo, December 2020.

Writing about CBDC, John Cochrane makes it clear that he is in favor. He links to my work and writes Dirk Niepelt has written a lot about CBDC theory, including reserves for all in 2015, a recent Vox-EU summary and papers,  here with Markus Brunnermeier a JME paper “CBDC coupled with central bank pass-through funding need not imply a credit crunch nor undermine financial stability,” a follow up including “The model implies annual implicit subsidies to U.S. banks of up to 0.8 percent...

Alberto Bisin (Journal of Economic Literature, December 2020) reviews Stephanie Kelton’s “The Deficit Myth: Modern Monetary Theory and the Birth of the People’s Economy:” Never is its logical structure expressed in a direct, clear way, from head to toe. … Some of these statements are literally correct but used for incorrect or misleading implications—plays on words, effectively. They seem taken directly from the book of tricks of the Greek sophists (the ones Aristophanes makes fun...