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Nankai Univ, Collaborat Innovat Ctr China Econ, Room 705,Bldg Econ Sch,94 Weijin Rd, Tianjin 300071, Peoples R China
Nankai Univ, Inst Stat & Econometr, Room 705,Bldg Econ Sch,94 Weijin Rd, Tianjin 300071, Peoples R China Tianjin Univ Finance & Econ, Sch Econ, Room 401,25 Zhujiang Rd, Tianjin 300071, Peoples R China