Clément De Chaisemartin is a Professor of Economics at Sciences Po since 2021, affiliated with the National Bureau of Economic Research (NBER) and J-PAL. His work focuses on econometric methods for policy evaluation and the economics of education. He holds a PhD from EHESS and Paris School of Economics (PSE), and previously taught at the University of Warwick and University of California, Santa Barbara (UCSB). Key research includes the evaluation of educational interventions, such as boarding schools for disadvantaged students, and methodological contributions to difference-in-differences (DID) estimators. Notable awards include the AFSE-Malinvaud Prize (2019) for his work on fuzzy DID. He co-authored influential papers in American Economic Review , Econometrica , and Review of Economic Studies , and developed Stata/R packages like did_multiplegt and twowayfeweights . Current projects include a textbook on DID methods and collaborations on multi-site randomized trials. Education: PhD in Economics (2013), École des Hautes Études en Sciences Sociales (EHESS) and Paris School of Economics (PSE). Research Interests: Causal inference, policy evaluation, educational disparities, and econometric methods. Grants & Projects: Research funded by French health/education authorities, including evaluations of early childhood programs like Parler Bambin. Teams: Maintains a research team and GitHub page for open-source econometric tools. His op-eds advocate for broader use of impact evaluation in public policy, critiquing private-sector dominance in applying such tools.








