"A growing share of the immigrants in the U.S. have higher education and income levels and could be filling higher-skilled jobs," according to the report.
Another effect of this immigration trend is that it provides "a bigger pool of workers to power the American economy -- and a bigger tax base to draw from to pay for the social benefits of older, retired Americans. A more fluid labor market -- with workers flowing in and out of jobs, and in and out of states and countries -- also improves economic growth over the long term by allowing for a more efficient matching of employers' and workers' needs."
Source:
Wall Street Journal Sept. 19,2013, Page A2