Etienne Berthet is an Economic Modeler at the SDSN where he specializes in economic research and quantitative methods to model environmental and social impacts. He holds Master's degrees in Environmental Economics and Engineering from AgroParisTech and is currently pursuing a PhD at the Technical University of Denmark, focusing on dynamic modeling for gauging present and future progress towards the SDGs. Previously, Etienne contributed to sustainability consulting and research, specializing in analyzing planetary boundaries related to SDGs. Etienne's academic journey and professional expertise make him a key contributor to the field of sustainable development, especially in the context of SDGs modeling and policy analysis.