Ph.D. Liu is the President of Renmin University of China, and he is also the Dean of Humanities and Social Sciences Research Institute in Peking University. He is a special professor of Changjiang Scholar Program, the Deputy Director of Economics Subject Teaching Committee of the Ministry of Education, the member of the Theoretical Economics Subject Group of the Academic Degrees Committee of the State Council, Vice President of the China Market Economy Society, Vice President of China Productivity Science Association, Vice President of China Non-public Economy Society, and the guest professors in several universities.