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CHICAGO, IL - OCTOBER 14: University of Chicago professor Eugene Fama speaks to students in his classroom at the university on October 14, 2013 in Chicago, Illinois. Earlier in the morning Fama learned he had won the Nobel Prize in Economic Sciences. Fama, and his U of C colleague Lars Peter Hansen and Yale University professor Robert Shiller will share the prize. (Photo by Scott Olson/Getty Images)
CHICAGO, IL - OCTOBER 14: University of Chicago professor Eugene Fama speaks to students in his classroom at the university on October 14, 2013 in Chicago, Illinois. Earlier in the morning Fama learned he had won the Nobel Prize in Economic Sciences. Fama, and his U of C colleague Lars Peter Hansen and Yale University professor Robert Shiller will share the prize. (Photo by Scott Olson/Getty Images)

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PISA Survey: Shanghai trumps U.S.

A global education survey shows U.S. students on average are falling behind their international counterparts.

PISA Survey: Shanghai trumps U.S.

A global education survey shows U.S. students on average are falling behind their international counterparts.