Welcome to my website!
I’m an applied environmental economist focusing on two major environmental issues, ambient air pollution and climate change.
I’m an Assistant Professor at CREST and ENSAE in Paris. I’m also a research affiliate at the the Institute for Fiscal Studies (IFS), the Institut des Politiques Publiques (IPP) and the House of Sustainable Society (HOSS).
- My current research seeks to answer three broad questions, mostly in the European context:
- What are the societal costs of air pollution? including health and non-health effects.
- To what extent do climate policies deliver health co-benefits? with an emphasis on the transport and electricity sectors.
- What are the determinants of support for green policies? with an emphasis on social norms and identity.
Don’t hesitate to contact me at marion.leroutier(at)ensae.fr, and see my cv here
- News:
- Spring 2026: Presenting at Paris II Assas, Sussex university, University of the Basque country, CESifo area conference on Energy and Climate Economics, Transatlantic Seminar on Environmental and Energy Economics
- December 2025: Presenting at seminar series of KU Leuven, Nanterre university
- November 2025: Updated WP as IFS working paper “The Gender Gap in Carbon Footprints: Determinants and Implications”