Research on the economic origins of democracy and dictatorship has shifted away from the impact of growth and turned toward the question of how different patterns of growth - equal or unequal - shape regime change. This book offers a new theory of the historical relationship between economic modernization and the emergence of democracy on a global scale, focusing on the effects of land and income inequality. Contrary to most mainstream arguments, Ben W. Ansell and David J. Samuels suggest that democracy is more likely to emerge when rising, yet politically disenfranchised, groups demand more influence because they have more to lose, rather than when threats of redistribution to elite interests are low.

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 University Press, 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 University Press, 2010); the author of Ambition, Federalism, and Legislative Politics in Brazil (Cambridge University Press, 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.