Opportunities and challenges / by Andrew Sobel -- Sustainable labor migration policies in a globalizing world / by Philip Martin -- The last bastions of state sovereignty : immigration and nationality go global / by Stephen Legomsky -- The era of free migration : lessons for today / by Kevin O'Rourke -- Cultural communities in a global labor market : immigration restrictions as residential segregation / by Howard Chang -- Economics versus identity : mass and elite attitudes toward trade, migration, and outsourcing / by Mariana Medina and Andrew Sobel -- Globalization and inequality in Latin America and the Caribbean / by Evelyene Huber and John Stephens -- Capital mobility and state social welfare provisions in the late 1800s / by Zahra Egal and Andrew Sobel -- Global governance redefined / by Miles Kahler