University of Science and Technology of China, University of Science and Technology of China (USTC), University of Science and Technology of China (USTC), Anhui Agricultural University, University of Science and Technology of China (USTC), University of Science and Technology of China, affiliation not provided to SSRN, University of Science and Technology of China, University of Science and Technology of China (USTC), Dalian University of Technology, University of Science and Technology of China (USTC) and University of Science and Technology of China (USTC)