调查负责人、杜克大学福库商学院(Duke ' s Fuqua School of Business)金融学教授约翰·格雷厄姆(John r . Graham)表示，目前可能是美国经济自1979 - 81年出现二次衰退以来最长时间的经济疲软。

'This could be the longest slowdown since the double-dip recession of 1979-81,' said survey director John R. Graham, who is a finance professor at Duke's Fuqua School of Business.

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