Introduction and Summary, George J. Borjas and Richard B. Freeman1 National Origin and the Skills of Immigrants in the Postwar PeriodGeorge J. Borjas2 Out-Migration and Return Migration of Puerto RicansFernando A. Ramos3 The Assimilation of Immigrants in the U.S. Labor MarketRobert J. LaLonde and Robert H. Topel4 The Fertility of Immigrant Women: Evidence from High-Fertility Source CountriesFrancine D. Blau5 Mass Emigration, Remittances, and Economic Adjustment: The Case of El Salvador in the Late 1980sEdward Funkhouser6 When the Minimum Wage Really Bites: The Effect of the U.S.-Level Minimum on Puerto RicoAlida J. Castillo-Freeman and Richard B. Freeman7 On the Labor Market Effects of Immigration and TradeGeorge J. Borjas, Richard B. Freeman, and Lawrence F. Katz8 The Effect of Immigrant Arrivals on Migratory Patterns of Native WorkersRandall K. Filer

George J. Borjas is professor of economics at the University of California at San Diego. Richard B. Freeman is professor of economics at Harvard University and director of the Labor Studies Program at the National Bureau of Economic Research.