With José Aricó and other intellectuals, he was in charge of the magazine Pasado y Presente, which holds a critical view of Marxism.
[1] He graduated in Sociology in University of Buenos Aires, and went into exile during the last illegal military government (1976–1983) because of threats received.
[2] After the return of democracy (1983), he became one of the most respected Argentine scholars and had a direct influence on politics as an advisor to Unión Cívica Radical president Raúl Alfonsín and member of the advising team dubbed Grupo Esmeralda.
[2] He served as dean of the University of Buenos Aires Faculty of Social Sciences from 1990 to 1998.
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