Yolanda Cristina Massieu Trigo D. in Economics from the Universidad Nacional Autónoma de México, a master's degree in Rural Sociology from the Universidad Autónoma de Chapingo and a bachelor's degree in Veterinary Medicine and Zootechnics from the Universidad Autónoma Metropolitana-Xochimilco, where he teaches in the undergraduate program in Sociology, the graduate program in Rural Development and the master's program in Sustainable Societies. His research topics are the following: socioeconomic, environmental, political and cultural impacts of agricultural biotechnology; technological innovation in agricultural production and agricultural workers; biodiversity, common goods, political ecology and intellectual property; peasantry and food sovereignty; agrofuels and energy crisis; as well as socio-environmental, socioeconomic, technological and political problems of contemporary society in general. He does collaborative work with several social organizations related to his areas of expertise. She is a member of the National System of Researchers level 2. She has multiple publications, including three books as sole author, has presented more than one hundred papers in various academic events and has directed 45 undergraduate and graduate theses on topics related to her specialty.