Leading issues of fact and theory
考察近期美国移民趋势中的事实与理论问题，比较来自富裕和贫穷国家的移民，并讨论其对美国就业、工资和工作条件的影响。
Factual and theoretical issues concerning recent U.S. immigration trends are examined with a focus on renewed interest in the subject among economists. Migration from rich and from poor countries is compared. The impact on the United States in terms of employment opportunities wages and working conditions is discussed. (ANNOTATION)