Nerve Endings Firing Away

The effects of immigration on the total output and income of the U.S. economy can be studied by comparing output per worker and employment in states that have had large immigrant inflows with data from states that have few new foreign-born workers. Statistical analysis of state-level data shows that immigrants expand the economy's productive capacity by stimulating investment and promoting specialization. This produces efficiency gains and boosts income per worker. At the same time, evidence is scant that immigrants diminish the employment opportunities of U.S.-born workers.

Interesting. This study posits that Americans are in fact better off if immigrants (from Latin American countries) lack in English language skills. Of course, that assumes *all* Americans have better English language skills :)

[Link to The Effect of Immigrants on U.S. Employment and Productivity]