Mario Luis Small is the Grafstein Family Professor of Sociology at Harvard University. He was previously Dean of the Division of the Social Sciences and Professor in the Department of Sociology at the University of Chicago. Small has published books and numerous articles on urban poverty, social capital, personal networks, and the relationship between qualitative and quantitative social science methods. His first book, Villa Victoria: The Transformation of Social Capital in a Boston Barrio (2004), examined how poverty affected social capital among residents of a Boston housing complex.