Hainan Su is former Director and second-level research fellow at the Labour & Wage Research Institute of the Ministry of Human Resources and Social Security. He is author of My Views on Income Distribution, Rational Adjustment of Wage Income Distribution Relations and other professional books on income distribution; he has published more than 200 articles on newspapers and magazines at the central, provincial and ministerial levels. Hong Wang is an associate research fellow at the Labour & Wage Research Institute of the Ministry of Human Resources and Social Security and an executive member of Compensation Committee of China Association for Labour Studies; she took charge of completing more than ten research programs at the provincial and ministerial levels. Fenglin Chang is Deputy Director and associate research fellow of the Labour & Wage Research Institute of the Ministry of Human Resources and Social Security, and doctor of economics from the School of Finance, Renmin University of China.