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机构:
Northwestern Univ, Kellogg Sch Management, Evanston, IL 60208 USA
Natl Bur Econ Res, Cambridge, MA 02138 USA
Shanghai Jiao Tong Univ, Shanghai Adv Inst Finance, Shanghai 200030, Peoples R China Northwestern Univ, Kellogg Sch Management, Evanston, IL 60208 USA