Scott Mainwaring is the Eugene and Helen Conley Professor of Political Science at the University of Notre Dame. His research interests include democratic institutions, democratization, and political parties and party systems. Among his previous books are Rethinking Party Systems in the Third Wave of Democratization: The Case of Brazil (1999), The Third Wave of Democratization in Latin America: Advances and Setbacks (co-edited, Cambridge University Press, 2005), The Crisis of Democratic Representation in the Andes (co-edited, 2006) and Democratic Governance in Latin America (co-edited, 2010). Mainwaring is a member of the American Academy of Arts and Sciences. In 2007, he was listed as one of the 400 most cited political scientists teaching in the United States.

Aníbal Pérez-Liñán is an Associate Professor of Political Science and a member of the Center for Latin American Studies at the University of Pittsburgh. His research focuses on democratization, political institutions, and the rule of law in new democracies. He is the author of Presidential Impeachment and the New Political Instability in Latin America (Cambridge University Press, 2007) and has published articles in the Journal of Politics, World Politics, Comparative Political Studies, Comparative Politics, and Electoral Studies, among other journals. His research has been funded by the National Science Foundation, the United States Agency for International Development and the Inter-American Development Bank.

This book presents a new theory for why democracies and dictatorships emerge and then either survive or collapse. Scott Mainwaring and Aníbal Pérez-Liñán analyze the survival of political regimes in Latin America since 1900, arguing for a theory of democratization situated between explanations that emphasize long-term structural preconditions and short-term decisions by specific leaders.

"Democracies and Dictatorships in Latin America takes a comprehensive look at regime change in that region, explaining the surprising endurance of democracy there since the 1970s. Through a parsimonious yet comprehensive theory of democratization that is contrasted with other theories, Professors Mainwaring and Pérez-Liñán provide analysis that will revive interest in these topics. Well organized and well written, this timely book will be of interest to scholars, analytically oriented lay readers, and policy makers alike." - William R. Keech, Research Professor of Political Economy, Duke University