[1] Hubei Univ Econ, Inst Adv Studies Finance & Econ, Wuhan, Peoples R China
[2] Xiamen Univ, China Inst Studies Energy Policy, Sch Management, Xiamen 361005, Fujian, Peoples R China
[3] Xiamen Univ, Innovat Lab Sci & Technol Energy Mat Fujian Prov, Xiamen, Peoples R China