Thomas Assefa is an Associate Research Fellow in the Innovation Policy and Scaling Unit of the International Food Policy Research Institute (IFPRI). He is a development economist whose research interests include agricultural technology adoption, rural development, agricultural transformation, behavioral economics, agricultural extension and advisory services, food and nutrition security, and survey methods and measurements. Most of his research involves experimental and quasi-experimental impact evaluation methods, and he has extensive experience in designing and implementing large-scale household surveys and RCTs. In his recent work, Thomas has focused on understanding smallholder farmers’ fertilizer adoption decisions and innovative methods to minimize measurement errors in development economics research. Before joining IFPRI, he worked as a postdoctoral research fellow at the University of Georgia, a consultant for the World Bank and FAO, and an IMMANA postdoctoral research fellow in a program administered by Tufts University. Thomas received his MSc from the Norwegian University of Life Sciences and holds a PhD from the University of Georgia, US.