Author Description

The first article, "The Effect of Two-child Policy on China's Fertility by Song Jian discusses the effect of lifetime fertility and period fertility of Chinese women. She indicated the two-child policy has significant influence on the birth of the second child, but the influence has not been strong enough to revitalize the period fertility level. In "The Mechanism of Gender Imbalance and Governance in China: Perspectives of Population Transition and Policy Adjustment" Bo Yang and Shuzhuo Li found that fertility policy adjustments improve the governance on gender imbalance; aging policy adjustments lead the governance on gender imbalance to social governance; combined with urbanization policies, the governance on gender imbalance could develop a comprehensive policy system for both rural and urban communities.Wang Jianping and Ye Jintao discuss the growth, characteristics and patterns of International Emigrants from China. They review the migration policies in leading immigrants receiving countries, discuss the scale, the flow of movements, the composition, as well as the characteristic of emigrants from China.Does family migration promote the migrants' subjective willingness of community integration? Wu Fan, and Zhou Miao indicated that migrants' subjective willingness of community integration still stays at a low level. However, family migration has a more significant impact on migrants' subjective willingness of community integration due to emotional support effect. Li Jingbo, Gao Yuan and Yuan Xin's paper "The Research on the Migrant Population's Vocational Choice -Based on the Perspective of Segmentation for the Household Registration System" pointed out that the vocational choice of urban-to-urban migrants is better than rural-to- urban migrants and inhabitant migrants after divided migrants into rural-to- urban migrants, inhabitant migrants and urban-to-urban migrants. An invisible threshold in the labour market seems restrict the vocational choice of rural-to