Edward T. WalkerEdward T. Walker is Associate Professor and Vice Chair in the Department of Sociology at the University of California, Los Angeles. His research examines how organizations and institutional contexts shape public participation. His research hasappeared in the American Sociological Review, American Journal of Sociology, Public Opinion Quarterly, and Social Problems. He is the author of Grassroots for Hire: Public Affairs Consultants in American Democracy. Read More Read Less