If the foreign worker earned his or her degree outside the U.S., you will need to obtain a credentials evaluation stating that the foreign degree is the equivalent to one awarded by a U.S. college or university.

FORBES: Immigration On A Very Fast Track: The Race For H-1B Visas

"For a kid who comes out and gets a job in the high school labour market with a college degree, they're going to get paid 10 or 11 bucks an hour, " says Drexel University economist Prof Paul Harrington.

BBC: US students face worst debt and job prospects ever