1 Center for Population and Development Studies, Renmin University of China, Beijing 100872; 2 School of Sociology and Population Studies, Renmin University of China, Beijing 100872
Published:2011-05-29
Online:2011-05-29
Contact:
songjian@ruc.edu.cn
About Author:1 Asociate Professor, Center for Population and Development Studies, Renmin University of China; 2 graduate student,School of Sociology and Population Studies, Renmin University of China