Liam Wren-Lewis is a professor at Paris School of Economics and a researcher at l’Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE). His research focuses on development, public policy evaluation and trust. He received his PhD from the University of Oxford. Prior to joining PSE, Liam worked as an ODI Fellow in the Ministry of Economic Planning and Development in MalawI.