Methodology

Tracking Loans and Grants from China to Low-, Middle-, and High-Income Countries: An Application of AidData’s TUFF 4.0 Methodology

Date Published

Nov 18, 2025

Authors

Bradley C. Parks, Brooke Escobar, Katherine Walsh, Sheng Zhang, Rory Fedorochko, Lydia Vlasto, Julie Sickell, Sailor Miao, Emma Bury, Jacqueline Zimmerman, Samantha Custer, Axel Dreher, Lukas Franz, Andreas Fuchs, Sebastian Horn, Ammar A. Malik, Carmen M. Reinhart, Austin Strange, Michael J. Tierney, and Christoph Trebesch

Publisher

Citation

Parks, B. C., Escobar, B., Walsh, K., Zhang, S., Fedorochko, R., Vlasto, L., Sickell, J., Miao, S., Bury, E., Zimmerman, J., Custer, S., Dreher, A., Franz, L., Fuchs, A., Horn, S., Malik, A. A., Reinhart, C. M., Strange, A., Tierney, M. J., & Trebesch, C. 2025. Tracking Loans and Grants from China to Low-, Middle-, and High-Income Countries: An Application of AidData’s TUFF 4.0 Methodology. Williamsburg, VA: AidData at William & Mary.

Abstract

This publication provides a detailed guide to the 4.0 version of AidData’s Tracking Underreported Financial Flows (TUFF) methodology. The methodology codifies a systematic, transparent, and replicable set of procedures that facilitate the collection of information about aid and credit from official sector donors and lenders who do not publish comprehensive or detailed information about their overseas activities. It does so by synthesizing and standardizing vast amounts of unstructured, open-source, project-level information published by governments, intergovernmental organizations, companies, nongovernmental organizations, journalists, and research institutions. The authors of the publication explain how the latest version of the TUFF methodology was used to construct China’s Global Loans and Grants (CLG-Global) Dataset, Version 1.0 and its constituent datasets, the China’s Loans and Grants to Low- and Middle-Income Countries (CLG-LMIC) Dataset, Version 1.0 and the China’s Loans and Grants to High Income Countries (CLG-HIC) Dataset, Version 1.0.

Featured Authors

Bradley C. Parks

Bradley C. Parks

Executive Director

Brooke Escobar
China Development Finance

Brooke Escobar

Interim Director, Chinese Development Finance Program

Katherine Walsh
China Development Finance

Katherine Walsh

Senior Program Manager

Sheng Zhang
China Development Finance

Sheng Zhang

Senior Research Analyst

Rory Fedorochko
China Development Finance

Rory Fedorochko

Program Manager

Lydia Vlasto
China Development Finance

Lydia Vlasto

Program Manager

Julie Sickell
China Development Finance

Julie Sickell

Program Manager

Sailor Miao
China Development Finance

Sailor Miao

Associate Program Manager

Emma Bury
China Development Finance

Emma Bury

Program Manager

Jacqueline Zimmerman
China Development Finance

Jacqueline Zimmerman

Associate Program Manager

Samantha Custer
Policy Analysis

Samantha Custer

Former Director of Policy Analysis

Ammar A. Malik
China Development Finance

Ammar A. Malik

Senior Research Scientist, Director of Tracking Underreported Financial Flows

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