Lucie Letrouit is a researcher in economics at the Gustave Eiffel University in France (SPLOTT laboratory: Productive Systems, Logistics, Transport Organization, and Work), which she joined in 2020. She holds engineering degrees from the Ecole Polytechnique (2016) and Ecole Nationale des Ponts et Chaussées in France (2016), as well as a M.A. and a Ph.D. from the Paris School of Economics (2020). Her research interests include a variety of topics including the role of social norms in the functioning of cities, the harnessing of behavioral economics’ insights for the decarbonization of consumption choices and supply chains, and the analysis of current transportation systems and of their environmental impacts. Her approaches are both theoretical and empirical (mobilizing public data as well as data collected for research purposes) and focuses on informing of public policies. During her Ph.D., she visited the World Bank as a consultant in the Development Research Group. She teaches transport economics at the Ecole Nationale des Ponts et Chaussées.