Gaëlle LE TREUT

Gaëlle Le Treut is an environmental economist. She focuses her research on the energy transition in developing countries, using in particular the GEMMES macroeconomic modelling tool.

Gaëlle Le Treut joined AFD’s macroeconomic modelling team at the end of 2022, after ten years of academic research. She is currently working on the development of the GEMMES model in Vietnam and in Morocco. She uses macroeconomic modelling coupled with sectoral models to establish a dialogue with public policies on the implications of low-carbon strategies.

She holds a PhD in economics (Ecole des Ponts - Université Paris Est) from the Centre international de recherche sur l’environnement et le développement (CIRED) and a diploma in energy engineering (Grenoble-INP, ENSE3). Her research focuses on the structural change caused by the energy transition and the macroeconomic consequences of implementing environmental policies such as the carbon tax.  

Before joining AFD, she was a researcher at CIRED. In particular, she was part of the international research network IMACLIM, bringing together different research institutes for the co-construction of national IMACLIM models as decision support tools for the energy transition. In addition to researching the French case, she has worked with Argentina (Bariloche Foundation), Brazil (COPPE – Federal University of Rio de Janeiro, where she completed a post-doctorate between 2018 and 2020), Mexico, Algeria and Nigeria.  

Peer-reviewed journal articles

• “Quantifying GHG emissions enabled by capital and labor: economic and gender inequalities in France”, Journal of Industrial Ecology, Volume 27, n°2, pp. 624-636, Pottier A., Le Treut G. (2023)
• “The economic impact of a deep decarbonisation pathway for China: a hybrid model analysis through bottom-up and top-down linking”, Mitigation and Adaptation Strategies for Global Change, Volume 27, Article number: 11, Su X., Ghersi F., Teng F., Le Treut G., Liang M. (2022)
• “Energy Policy Implications of Carbon Pricing Scenarios of Brazilian NDC implementation”, Energy Policy, Volume 160, Grottera C. (13 more), Le Treut G., Ferreira Cunha S., Lefèvre J. (2022)
• “Economic and social effectiveness of carbon pricing schemes to meet Brazilian NDC targets”, Climate Policy, 22:1, 48-63, Wills W., La Rovere E. L., Grottera C., Naspolini F. G., Le Treut G., Ghersi F., Lefèvre J. (2021)
• “The multi-level economic impacts of deep decarbonization strategies for the energy system”, Energy Policy, Volume 156, Le Treut G., Lefèvre, J., Lallana F., Bravo G. (2021)
• “Exploring deep decarbonization pathways for Argentina”, Energy Strategy Reviews, Volume 36, Lallana F., Bravo G., Le Treut G., Lefèvre J., Di Sbroiavacca N., Nadal G. (2021)
• “Net-zero deep decarbonization pathways in Latin America: challenges and opportunities”, Energy Strategy Reviews, Bataille C., Waisman H., Vogt-Schilb A., Jaramillo M., Delgado R., Arguello R., Clarke L., Wild T., Lallana F., Bravo G., Le Treut G. et al. (19 more) (2020)

PhD thesis

• “Methodological proposals for hybrid modelling: consequences for climate policy analysis in an open economy (France)”, PhD in Economics, École des Ponts ParisTech, CIRED, France

Working Papers

• “Policy lessons from the Deep Decarbonization Pathways in Latin America and the Caribbean Project (DDPLAC) - Argentina - Getting to near net-zero emissions”, DDPLAC Consortium, Edited by C. Bataille (2020)
• “Getting to net-zero emissions - Lessons from Latin America and the Caribbean”, IDB & DDPP-LAC Consortium (2019)
• “Emissions embodied in international trade: an application to the French case”, Le Treut G. (2017)
• “Climate policy design to preserve the competitiveness of the French industry with hybrid input-output tables”, Le Treut G., Combet E. (2016)
• “Construction of hybrid Input-Output tables”, Le Treut G., Combet E., Ghersi F., Lefèvre, J. (2014)

Modelling

• “IMACLIM-Country platform : a country-scale computable general equilibrium Model” (Version V1.1), Zenodo, Le Treut G. et al. (2019)