[1] Sun Yat Sen Univ, Int Sch Business & Finance, Guangzhou, Peoples R China
[2] Xiamen Univ, Wang Yanan Inst Studies Econ, Xiamen, Peoples R China
[3] Xiamen Univ, Minist Educ, Key Lab Econometr, Xiamen, Peoples R China
[4] Xiamen Univ, Gregory & Paula Chow Ctr Econ Res, Sch Econ, Xiamen, Peoples R China