Sun Xuan: Doctor, professor, doctoral supervisor, director of China University of Political Science and Law's Legal Business Management Research Center, founding dean of China University of Political Science and Law's Business School, head of "Innovative Experimental Zone of Legal Business Talents Training Mode" of the Ministry of Education, founder of China Leading College of Legal Business, president of Legal Business Management Research Association, executive director of China Market Economy Research Association, executive director of China Building Materials Industry Economic Research Association, executive director of China International Exchange Promotion Association, and vice president of China Business Economics Association.