Liliana Rivera Sánchez. She obtained the doctorate in Sociology at The New School for Social Research, United States, in 2004; He obtained the Master in Social Sciences at the Latin American Faculty of Social Sciences (Flacso-Mexico) in 1996, and the Bachelor of Sociology at the Faculty of Sociology of the Veracruz University in 1993. From 1996 to 1998 he was a professor-investigator in the division of Public Administration of the Economic Research and Teaching Center, CIDE; From 2005 to 2014 she was a researcher at the Regional Center for Multidisciplinary Research of the National Autonomous University of Mexico, Crim-Unam, and since 2014 she serves as a research professor in the CES of El College of Mexico. She is a member of the National System of Researchers at level III.