TSE Junior Etudes is the Junior Enterprise of the Toulouse School of Economics, member of the Confédération Nationale des Juniors-Entreprises. We respond to the needs of companies/organizations by assigning students from the Toulouse School of Economics to conduct quantitative studies. We intervene more particularly in industrial economics (market studies, competition), in macroeconomics (public policy evaluation, economic impact measurement), in environmental economics (environmental impact studies, cost-benefit analysis) thanks to data analysis and economic theory. The members of the TSE Junior Studies benefit from experience acquired and passed on over the years. The students, who carry out the studies, benefit from the rigorous teaching of the 1st School of Economics in France according to the Shanghai 2022 ranking.