Work in progress:


Hidden Debt Revelations, with David Mihalyi, Philipp Nickol and César Sosa-Padilla

Resubmitted to The Quarterly Journal of Economics

NBER Working Paper; World Bank Blog; Summary in The Economist, NPR Planet Money, UNU Wider Statement on the International Financial Architecture


States as Financiers: International Lending in War and Peace, with Carmen M. Reinhart and Christoph Trebesch

NBER Working Paper; summary in NBER Digest and at VoxEU; press coverage in FT, LeMonde, Sueddeutsche


International Risk-Sharing in a Fragmented World, with Javier Bianchi, Giovanni Rosso and César Sosa-Padilla

Revise & resubmit at The Review of Financial Studies

NBER Working Paper; blog by Minneapolis FED; Slides from NBER IFM Spring Meeting


China as an International Lender of Last Resort, with Lukas Franz, Brad Parks, Carmen M. Reinhart and Christoph Trebesch

Resubmitted to the Journal of International Economics (2nd round)

NBER Working Paper; data available here. Selected media coverage: NYT, FT (and Alphaville), WSJ (also see here), Bloomberg, CNN, Economist


How China Collateralizes, with Anna Gelpern, Omar Haddad, Paulina Kintzinger, Brad Parks and Christoph Trebesch

CEPR Discussion Paper No. 20379. Media coverage: Reuters, FAZ (also here), FT (and FT Alphaville)


Opening Up: Capital Flows and Financial Sector Dynamics in Low-Income Developing Countries, with Futoshi Narita

IMF Working Paper No. 2021/237 


The Financial Returns on China's Belt and Road, with Lukas Franz, Brad Parks, Carmen M. Reinhart and Christoph Trebesch

Slides from World Bank ABCDE conference, July 2024


Beyond Market Exclusion: Creditor Attrition after Sovereign Default, with Clemens Graf von Luckner

Multilateral Lending, with Javier Bianchi, Giovanni Rosso, and Cesar Sosa-Padilla


Published papers:


Predicting Debt Distress in Low-Income Countries, with Clemens Graf von Luckner, Aart Kraay and Rita Ramalho

World Bank Economic Review, August 2026 

Replication package; working paper; presentation by Clemens at the IMF Annual Research Conference


China's Lending to Developing Countries: From Boom to Bust, with Carmen M. Reinhart and Christoph Trebesch

Journal of Economic Perspectives, November 2025

NBER Working Paper 34359; summary in FAZ; debt stock estimates 2000-2021


How China Lends: A Rare Look Into 100 Debt Contracts with Foreign Governments, with Anna Gelpern, Scott Morris, Bradley Parks and Christoph Trebesch

Economic Policy, April 2023

Testimony in the U.S. House of Representatives

Data and Chinese lending contracts are available in a public repository here. 

Selected media coverage: The Economist, Bloomberg, Financial Times (also here, here and here), Washington Post, Devex, Reuters, Sueddeutsche, Spiegel


Debt Distress on China's Belt and Road, with Brad Parks, Carmen M. Reinhart and Christoph Trebesch

AEA Papers & Proceedings, May 2023

Data and replication package available here.


Hidden Defaults, with Carmen M. Reinhart and Christoph Trebesch

AEA Papers & Proceedings, May 2022

World Bank Policy Research Working Paper 9925

Data and replication file; selected media coverage: The Economist (see also here and here), Handelsblatt, Welt, FAZ, Spiegel, WSJ


China's Overseas Lending, with Carmen M. Reinhart and Christoph Trebesch

Journal of International Economics, November 2021

Data and replication available here. Earlier version: NBER WP 26050.

JIE Calvo Award 2024; Summaries available at VoxEU, Harvard Business Review and at CGD (response to critics)

Selected media coverage: The Economist, Wall Street Journal, New York Times, CNBC, NZZ, FAZ, Der Spiegel

Updated debt stock estimates - 2025