Yang Liu, he received his Ph.D. in economics from Nankai University. He once worked in companies and universities engaged in trade-related teaching and research work. The research directions are: theories and policies of economic cooperation in the Asia-Pacific region, trade facilitation, and medical device regulatory regulations. He has published more than ten papers in journals such as China Business and Market, Practice in Foreign Economic Relation and Trade , International Economics and Trade Research, World Economic Studies and other journals, and participated in projects such as the Customs Department of the Ministry of Finance and the Humanities and Social Sciences of the Ministry of Education. He is currently a lecturer at Xianda College of Economics & Humanities Shanghai International Studies University.