Graduate in Social Sciences from Universidade de São Paulo (1982), master’s in Sociology from Universidade de São Paulo (1991) and ph.d. in Sociology from Universidade de São Paulo (1995). Has experience in Sociology, acting on the following subjects: labor movement, labor market, Brazil, Latin America, class formation, work trajectories, globalization, productive restructuring and urban sociology. Has published 17 books and more than 70 articles and book chapters.