我国收入差距扩大的影响因素及其实证分析——以行业收入变动为视角

The Factors Affecting the Income Gap Increase in Our Country and Its Empirical Analysis——From the Perspective of Industrial Income Variation

笔者以传统行业收入决定理论为基础,运用2003年～2008年我国19个行业的面板数据构建模型,系统地分析了2002年至今各行业收入变动的影响因素及其影响效果。结果表明,生产效率仍然是决定收入变动的重要因素;垄断因素在行业收入差距扩大中扮演最重要的角色;人力资本水平对收入变动的作用有待于进一步提升。笔者还阐述了加入"世贸"组织后垄断行业暴利、高教扩招等社会现实问题对行业收入变动的影响。

On the basis of the theory of income decision in conventional industries, using the penal data of 19 industries of our country from 2003 to 2008, the authors construct a model and analyze the factors influencing the income variation in various industries since 2002 and its effect. The findings show that production efficiency is still the important factor deciding income variation, monopoly plays an important role in industrial income gap increase and the impact of the level of human capital on the income variation needs to be promoted. The authors also expound the influence of factual social problems such as windfall profits in monopoly industry, higher education expansion etc on industrial income variation since China joined WTO.