^1.School of Economics and Management, Inner Mongolia University of Science & Technology, Baotou, Inner Mongolia 014010, China

^2.Key Research Institute of Humanities and Social Sciences at Universities of Inner Mongolia Autonomous Region, Research Center of Industrial Informationization and Innovation, Inner Mongolia University of Science & Technology, Baotou, Inner Mongolia 014010, China

^3.Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources, Ministry of Education, Inner Mongolia University of Science & Technology, Baotou, Inner Mongolia 014010, China

^4.Yellow River Jiziwan Development Research Institute, Inner Mongolia University of Science & Technology, Baotou, Inner Mongolia 014010, China