Banks "want to make sure that people really understand the culture," says Ron Peracchio, senior director of the Career Development Office at the Massachusetts Institute of Technology's Sloan School of Management. "If [students] don't get an internship in the summer, there aren't a lot of opportunities unless they have banking experience."
Other industries also like to hire from their intern pool, even if not to the same extent as banking.
"I'd say that over 50 percent of my friends have jobs from the summer or have good relationships with their summer employer," says Grace Chang Mazza, who is studying marketing at the University of Pennsylvania's Wharton School and interned for consumer goods giant Unilever last summer. She went into the job believing it could serve as an entry point, and indeed will work there after getting her MBA this spring.
This story is excerpted from the U.S. News Best Graduate Schools 2014 guidebook, which features in-depth articles, rankings, and data.