He is a doctor in Education from the University of Buenos Aires. He resides for more than twenty years in Brazil, where he is a professor at the State University of Rio de Janeiro (UERJ). Currently, he is the executive secretary of the Latin American Council of Social Sciences (CLACSO) and coordinates the Latin American Observatory of Educational Policies (OLPED) and the Nucleus of Educational Policies of the Metropolitan University of Education and Work (UMET). He has been director of the Brazil headquarters of the Latin American Faculty of Social Sciences (FLACSO) and executive secretary of the International Council of the World Education Forum.

He is the author and compiler of more than twenty-five books in the field of educational policies and studies on social exclusion in Latin America and the Caribbean, published in Argentina, Brazil, Mexico, Spain, Venezuela and Italy. He directs the magazine Crítica y Emancipación and is a contributor to the Spanish newspaper El País, where he signs the blog Contrapuntos.