Edwin E. Witte Professor of Political Economy, Robert M. La Follette School of Public Affairs, University of Wisconsin- Madison. Former positions with University of Wisconsin: Field Chair, Political Methodology; Glenn B. and Cleone Orr Hawkins Professorship; Field Chair, American Politics; and Distinguished Visiting Professor. Former positions with the University of Rochester: Acting Director, Public Policy Analysis Program; Director of Graduate Studies, Department of Political Science; Research Fellow, Rochester Center for Economic Research; Professor of Political Science and Public Policy; Associate Professor of Political Science; Deputy Director, Public Policy Analysis Program; Assistant Professor of Political Science; and Instructor in Political Science. Former positions with Lingnan College, Hong Kong: Visiting Professor, Faculty of Social Sciences, and Director, Center for Public Policy Studies. Former Economist, Office of Policy, Planning and Analysis, U.S. Department of Energy. Former positions at University of California-Berkeley: Teaching Fellow and Teaching Assistant, Graduate School of Public Policy.