Sylvain Chassang is a Professor of Economics at Princeton University. His research interests are in game theory, industrial organization, and development. Chassang is a former member of the French Council of Economic Analysis, and a former co-editor at the American Economic Review. He is a fellow of the Econometric Society and a previous winner of the Alfred P. Sloan Fellowship. Chassang received his PhD from MIT. Recent work includes Valuing the Time of the Self-Employed (with D. Agness, T. Baseler, P. Dupas, and E. Snowberg, Review of Economic Studies, 2025) and Using Divide and Conquer to Improve Tax Collection (with L. Del Carpio and S. Kapon, Quarterly Journal of Economics, 2024). In ongoing research, he has been studying the impact of the used car market on the design of policies seeking to reduce GHG emissions from transport.