The "impact" of foreign students on the United States

[Eric Zimmerman]

All,

Can someone point me to studies on the positive "impact" of foreign
students on the United States?  This could be on economic impact, world
leaders who studied in The States, Nobel Prize winners who previously
studied at a US university, and so on...

I realize this is a complex issue, but any help will be greatly appreciated.

Thanks, Eric Zimmerman