Stephen Castles is Research Professor of Sociology, University of Sydney, Australia and Research Associate Director at the International Migration Institute (IMI), University of Oxford, UK. He is a sociologist and political economist, and currently works on migration and development, effects of migration on both origin and destination countries, transnationalism, and social transformation and human mobility at a global level. From 2001-2006, he was Director of the Refugee Studies Centre at Oxford University, and from 2006 to 2009 founding Director of IMI.

Mark J. Miller is Emma Smith Morris Professor of Political Science and International Relations, University of Delaware, USA. He has taught there since 1978 and in 2007 received the Francis X. Alison award, the highest honor accorded faculty at the University of Delaware.

At the turn of the twenty-first century, international migration has become a central issue in international relations and one of the most important questions of domestic politics in many countries. THE AGE OF MIGRATION provides a global perspective on the nature of migration movements, why they take place, and their effects on countries as different as Britain and the USA, Australia and Germany, and Canada and France. Showing how migration almost always leads to formation of ethnic minorities, the book examines how growing ethnic diversity affects economies, cultures, and political institutions and challenges existing forms of citizenship and national identity. This second edition has been

completely revised and updated, including increased coverage of new migrations in Africa and Latin America and a new chapter on the Asia-Pacific region.