Paul Pierson is the John Gross Professor of Political Science at the University of California at Berkeley. Pierson’s teaching and research includes the fields of American politics and public policy, comparative political economy, and social theory. His most recent books are Off-Center: The Republican Revolution and the Erosion of American Democracy (with Jacob Hacker), Politics in Time: History, Institutions and Social Analysis, The Transformation of American Politics: Activist Government and the Rise of Conservatism (co-edited with Theda Skocpol), and Winner-Take-All Politics: How Washington Made the Rich Richer and Turned Its Back on the Middle Class (with Jacob Hacker). Pierson is an active commentator on public affairs, whose writings have recently appeared in such outlets as The New York Times Magazine, the Washington Post, and The New Republic. Pierson is also the author of Dismantling the Welfare State? Reagan, Thatcher, and the Politics of Retrenchment, which won the American Political Science Association's 1995 prize for the best book on American national politics.