Abstract

The problem of gender imbalance is widespread in Asian countries. Gender imbalance evolved with stage features of occurrence，development and disappearance. Guilmoto’ research shows that gender imbalance showed features of three stages which is “first climb，then hovering，finally fell to balance”. Korea，the country who encountered imbalance SRB，now has been basically achieved the goal of gender balance. Since 1980，China’s sex ratio at birth is rising continuously and still hovering. Future trend of gender imbalance in China become academic focus. Based on foundation of theory as well as research of demographic transition and gender imbalance，this book aims to build the gender imbalance evolution analytical framework，and apply the framework to analyze the evolution of China’s gender imbalance.

This book proposes the theoretical framework to analysis the evolution of gender imbalance. Based on the theoretical foundation of the change of fertility behavior related or similar gender imbalances at home and abroad，combined with our high sex ratio realities and characteristics of the problem，build analytical framework for the evolution of gender imbalance. The framework consists of macro-space theory of fertility behavior and micro-RWA combination of diffusion theory，macro-analysis can be a good part of the evolution of gender imbalance，microscopic theory of macro-oriented research and analysis is to help the gender imbalance mechanisms behind the effect，two who can be a good show combines three decades of gender imbalance of evolutionary mechanisms of the whole process.

We summarize the evolution of Chinese gender imbalance patterns and area type. Found that the evolution of China’s gender imbalance in line with Guilmoto’s sex ratio transition model，Chinese model presents the evolution of gender imbalance for high fertility levels begin to interact，and gradually rise and hovering phase characteristics，and because of a strong preference for boys between regions weak difference from different subtypes.

We reveal that China’s gender imbalance is affected by factors social，culture and economic environmental factors，as well as time effect by diffusion. In theory，under the guidance RWA found willingness class feature，benefit class elements and factors on our ability classes are affected gender imbalance，which willingness of elements in the evolution of gender imbalance among the most important role，followed is benefit elements. Men and women’s economic status is a substantial difference to the impact of birth sex structure. From a regional comparative perspective，the strong preference for regions，capacity factor can be a greater impact on the gender imbalance；weak preference for regional capacity factor structure of gender had no significant effect. China has a significant social changes in the socio-economic characteristics of the stage，both the performance of each of these factors in the changes among the different factors that can change the performance of the speed，intensity differences；these factors lead to sex selection behavior changes and spread factors change，including the costs and benefits of different gender differences in children，people’s preference for boys and ethical behavior regarding sex selection legal norms，as well as sex selection techniques to obtain the ability，thereby affecting changes in sex ratio at birth. Analysis shows China’s gender imbalance evolutionary mechanisms.

Based on the findings，the dissertation put forward public policy recommendations aimed to promote gender equality，sub regional and phased effective governance of gender imbalance in China.