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Bloomberg Markets' 50 Most Influential

By Bloomberg Markets - 2012-09-05T07:58:26Z

Photograph by Erika Larsen/Redux

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35 of 55

Carmen Reinhart

Professor, Harvard University.

Her research connects the dots between debt, financial crises and very slow recoveries. Reinhart, 56, in a paper published with co-authors in April, warns that debt above 90 percent of a country's GDP can restrain growth for more than 20 years.