[1] Zhejiang Univ, Sch Econ, Hangzhou, Peoples R China
[2] Tsinghua Univ, PBC Sch Finance, Beijing, Peoples R China
[3] UNSW Sydney, Sch Accounting Auditing & Taxat, Sydney, NSW, Australia
[4] Zhejiang Univ, Dept Finance, Zijingang Campus,866,Yuhangtang Rd, Hangzhou 310058, Zhejiang Provin, Peoples R China