Sociologist. He took part in the attempts to reform the communist youth movement in the 1970s. He worked for the Kossuth Publishing House. He participated in several underground seminars of the democratic opposition. In 1977 he published a samizdat entitled "Marx in the fourth decade" after which he lost his job. He contributed to the Bibó Memorial Book, signed the Charta petition. After the political transition he became lecturer at Loránd Eötvös University  and at the Central European University.