In the Ninth Edition, American Government: Power and Purpose maintains the analytical rigor, focused pedagogy, and judicious use of relevant history that have distinguished it as the authoritative text for American government courses. Retaining the analytical framework that first appeared in the Seventh Edition, the Ninth Edition emphasizes five core "Principles of Politics":
1. All political behavior has a purpose
2. All politics is collective action
3. Institutions matter
4. Political outcomes are the products of individuals' preferences and institutional procedures
5. History matters
By drawing on these principles throughout the text, the authors expose students to repeated applications of core ideas in their discussion of political concepts and history. The result is a refined, accessible portrait of America's government institutions and political life that encourages students to think critically and analytically.
Theodore J. Lowi has been John L. Senior Professor of American Institutions at Cornell University since 1972. He was elected President of the American Political Science Association in 1990 and was cited as the political scientist who made the most significant contribution to the field during the decade of the 1970s. He is currently first vice-president of the International Political Science Association and a member of its Research Committee on world pluralism and minority representation. Among his numerous books are The End of Liberalism and The Pursuit of Justice, for which he collaborated with Robert F. Kennedy. Benjamin Ginsberg is the David Bernstein Professor of Politics at The Johns Hopkins University. His books The Captive Public and Politics by Other Means are widely used in college courses. His most recent book is the highly regarded Downsizing Democracy: How America Sidelined Its Citizens and Privatized Its Public. Kenneth A. Shepsle is the George D. Markham Professor of Government at Harvard University. He is the author or co-author of several books, including Politics in Plural Societies: A Theory of Democratic Instability, The Giant Jigsaw Puzzle: Democratic Committee Assignments in the Modern House, Models of Multiparty Electoral Competition, and Making and Breaking Governments. He has edited The Congressional Budget Process: Some Views from the Inside, Political Equilibrium, Perspectives on Positive Political Economy, and Cabinet Ministers and Parliamentary Government. He has also authored numerous articles on formal political theory, congressional politics, public policy,and political economy. He is the co-author of the successful undergraduate text Analyzing Politics: Rationality, Behavior, and Institutions.