[1] Shandong Technol & Business Univ, Sch Econ, Yantai 255000, Shandong, Peoples R China
[2] Xiamen Univ, Sch Management, China Inst Studies Energy Policy, Xiamen 361005, Fujian, Peoples R China
[3] Innovat Lab Sci & Technol Energy Mat Fujian Prov, Xiamen 361101, Fujian, Peoples R China