Before coming to Penn, Rethis worked at the Africa Institute for Research in Economics and Social Sciences (AIRESS) in Rabat, and previously served at the National Institute of Statistics and Demography (INStaD-Benin). Rethis has a Master’s in Economic Analysis and Public Polocy from Mohammed VI Polytechnic University, a Master’s in Development Economics from the University of Paris, Dauphine, and a Bachelor’s degree in Applied States from the University of Parakou.