Meanwhile, the U.S.'s problems have similar potential effects. Should U.S. economic growth happen to slip, it will hurt U.S. trading partners. And the congressional showdown over the U.S. debt ceiling last August caused nervousness in halls of government worldwide.
Still, says Rehman, the U.S. is in much better shape than the E.U., though the ultimate solution for the U.S. economy is much more easily said than done. "The U.S. just basically has to get on the ball about making a long-term strategic plan and doing debt management accordingly," she says.
Danielle Kurtzleben is a business and economics reporter for U.S. News & World Report. Connect with her on Twitter at @titonka or via e-mail at firstname.lastname@example.org.