Ben W. Ansell is Professor of Comparative Democratic Institutions at Nuffield College, Oxford, and co-editor of Comparative Political Studies. His work on education, democracy, and housing markets has appeared in the American Political Science Review, Comparative Political Studies, World Politics, and International Organization. His book From the Ballot to the Blackboard (Cambridge, 2010) was awarded the 2011 William Riker Prize by the Political Economy Section of the American Political Science Association. David J. Samuels is Distinguished McKnight University Professor of Political Science at the University of Minnesota. He is the coauthor of Presidents, Parties, and Prime Ministers (Cambridge, 2010); the author of Ambition, Federalism, and Legislative Politics in Brazil (Cambridge, 2003); and the co-editor of Decentralization and Democracy in Latin America (2004). His work has appeared in the American Political Science Review, the American Journal of Political Science, Comparative Politics, Comparative Political Studies, Legislative Studies Quarterly, and the British Journal of Political Science. He currently serves as co-editor of Comparative Political Studies.