Kunming University of Science and Technology, Kunming University of Science and Technology, Beijing University of Technology - Institute of Circular Economy, Kunming University of Science and Technology, affiliation not provided to SSRN, affiliation not provided to SSRN, Kunming University of Science and Technology, Kunming University of Science and Technology, Kunming University of Science and Technology, Kunming University of Science and Technology, affiliation not provided to SSRN and Wuzhou University