Li, Peilin is an Academic Member of Chinese Academy of Social Sciences (CASS). He now serves as Vice-president of CASS. He earned his Ph.D. at University of Paris I (Pantheon-Sorbonne) in 1987. He has published and edited many articles, books, and essay collections, in Chinese, English, and French, on social stratification and mobility (particular Chinese domestic migrant workers) and economic sociology (particular Chinese State Enterprises). He is also hosting several large projects, including "Chinese general social survey", one of largest and earliest national sociological survey since 2006.
Gorshkov, Mikhail K., Director of the Federal Center of Theoretical and Applied Sociology of the Russian Academy of Sciences (former Institute of Sociology of the Russian Academy of Sciences), renowned for his investigations in social philosophy, sociology of mass consciousness and sociology of public opinion, methodology and methods of sociological research, sociology of youth, sociology of identity, sociology of social inequalities, sociology of Russian everyday life, etc.

Introduction.- Trajectory and Development of the Middle Income Group.- Consumption and Lifestyle of the Middle Income Group.- Social Security and the Risk Resistance Capacity of the Middle Income Group.- Social and Political Participation of the Middle Income Group.- Mid-Income Groups in Russian Metropolitan Cities.