Prior to coming to Cornell, Ryan worked for the UNDP-IPC in Brasilia where he worked on policies related to local food procurement and family farming. This continues to be part of his research agenda to further the links between state-based food procurement policies and the politics of food sovereignty. In addition, his current research interest focuses on the history and politics of agricultural research in Brazil centered around the Brazilian Agricultural Research Corporation (Embrapa). For this project, he draws on three main theoretical fields of inquiry: Science and Technology Studies (STS), the Sociology of Development and Critical Agrarian Studies. Please see his academia.edu page or google scholar profile for selected publications and more information.