Guilin University of Electronic Technology, Guilin University of Electronic Technology, affiliation not provided to SSRN, affiliation not provided to SSRN, Guilin University of Electronic Technology, Guilin University of Electronic Technology, affiliation not provided to SSRN, Guilin University of Electronic Technology, Guilin University of Electronic Technology, Guilin University of Electronic Technology, Guilin University of Electronic Technology, Guilin University of Electronic Technology, Guilin University of Electronic Technology, Changsha University of Science and Technology and Changsha University of Science and Technology