Alejandro Portes is Professor of Sociology and founding director of the Center for Migration and Development at Princeton University and Research Professor at the University of Miami. Ruben G. Rumbaut is Professor of Sociology at the University of California, Irvine, and founding chair of the International Migration Section of the American Sociological Association. They are the coauthors of "Legacies: The Story of the Immigrant Second Generation" and coeditors of "Ethnicities: Children of Immigrants in America".