The Centro de Informacion y Recursos para el Desarrollo (CIRD), IPA Peru, and J-PAL LAC organized a seminar on the importance of scientific evidence in improving the efficiency and efficacy of social policy. Dylan Ramshaw (Deputy Country Director, IPA Peru) introduced IPA and J-PAL’s mission and work in the region. Juan Hernandez (Policy Manager, J-PAL LAC) presented on the value that evidence can bring to public policy, as well as the role that randomized evaluations can play. Mauricio Alainz (Paraguay Project Coordinator, IPA Peru) presented results from randomized evaluations that examined topics in education, financial inclusion, and rural development. Event participants included policymakers, members of international organizations, and the public.