From PhysOrg:
A recent study by a University of Nevada, Reno economist and a graduate student found that employer-sponsored workers in the United States on temporary visas who acquire their green cards and become permanent residents increase their annual incomes by about $11,860. They studied data from The New Immigrant Survey, a collaborative study of new legal immigrants funded in 2003 by the U.S. Immigration and Naturalization Service and other public and private partners. The study, “The Value of an Employment-Based Green Card,” by associate professor Sankar Mukhopadhyay and former graduate student David Oxborrow in the College of Business, was published this month in the journal, Demography. According to the U.S. Department of Homeland Security, from 1999 to 2008, about 1 million green cards were approved each year. The majority of these, 74 percent, were to those sponsored by family or with immediate relatives who are U.S. citizens. However, about 15 percent of those approved for green cards were classified as “employment-based applicants.” These workers are mostly highly educated and highly skilled with college degrees, here on work visas for up to six years. The average wait to obtain a green card, however, is six to 10 years. Of those workers here on this particular type of visa, about 56 percent end up being successful in obtaining their green cards.
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