Nicolás M. Somma holds a Ph.D. in Sociology from the University of Notre Dame. He is an associate professor and former president of the Institute of Sociology at the Pontificia Universidad Católica de Chile, and an associate researcher at the Centro de Estudios de Conflito y Cohesión Social (COES, Chile). His teaching and research focus on political sociology, social movements, and historical-comparative sociology. He has published in journals such as Party Politics, Social Movement Studies, American Behavioral Scientist, Latin American Politics and Society, and Comparative Politics, among many others. Currently, he is completing a mixed-methods project on labor movements in Latin America and beginning a study on popular rebellions in the region since 1989.