教育文凭具有信号价值，但能否在中国劳动力市场中顺利实现是社会各界关注的议题。基于筛选理论、劳动力市场分割理论和社会资本理论，利用全国性调查数据，采用多种计量经济学方法，本书系统全面地测度了中国个人教育收益中的文凭效应，并探讨在中国劳动力市场分割及家庭资本等外生干扰因素客观存在的现实环境下，教育文凭的信号价值如何得以实现。

Education diplomas have signal value, but whether they can be successfully realized in the Chinese labor market is a matter of concern to all sectors of society. Based on screening theory, labor market segmentation theory and social capital theory, using national survey data and using a variety of econometric methods, this book systematically and comprehensively measures the diploma effect in China's individual education income, and discusses how the signal value of education diploma can be realized in the real environment of China's labor market segmentation and external interference factors such as household capital.（AI翻译）