His work focuses on political ethnography, urban poverty in Latin America, and contentious collective action. He received his Ph.D. in sociology at the New School for Social Research in 1997, where Charles Tilly taught from 1984 to 1996. The SSRC honored Hirschman Prize recipient Charles Tilly with a series of events on the weekend of October 3-5, 2008 at Columbia University.→ Event proceedings