随着中国高校持续十多年的大规模扩招，以及中国经济由要素投入型增长向全要素生产率增长的转变，中国劳动力市场上的大学教育劳动力供给和需求越来越大，随之而来的以大学教育溢价为主导的收入差距问题逐步凸显出来。本项目首先基于扩展Mincer工资方程并控制能力偏差，对中国大学教育溢价的水平及其演化特征进行了全面测度；然后基于双层嵌套CES生产函数建立“供给-需求-制度”框架下的基本理论模型来分析大学教育溢价的成因，接着从异质性和融入教育信号发送功能两个方面对基本模型进行了拓展，并针对中国实践展开相应的实证研究；最后基于泰尔指数和RIF回归方程分解出大学教育溢价对中国收入差距的影响。本项目揭示了中国大学教育溢价演化的特征事实，提供了研究其成因的理论分析工具，研究结论对我国高等教育政策、大学生就业政策和收入分配政策的制定都有非常重要的启示意义。

As China’s massive college enrollment expansion in recent ten years and economic growth by factor inputs to TFP growth, the supply and demand of college educated labor in Chinese labor market are growing. The income gap caused by college premium gradually becomes prominent. This project firstly measures the level and evolutionary characteristics of China’s college premium based on the extended Mincer wage equation by controlling ability bias; secondly uses the double-nested CES production function to set a basic theoretical model under the “supply-demand-instituion” framework to analyze the causes of college premium. Then, the basic model is expanded from the heterogeneity and the intergration of educational signaling fuction, and the corresponding empirical research is carried out in the light of the practice of China. Finally, the Theil index and RIF regression equation are used to decomposition the effect of college premium on China’s income gap. The project reveals the stylized facts of the evolution of China’s college premium and provide the theoretical tool to analysis the causes of college premium. The conclusions of the study have very important implications to Chinese higher education policy, employment policy and income distribution policy.