行业收入差距:从劳动生产率的角度分析——以高新技术产业和建筑业为例

Income Gap among Different Sectors:in View of Labor Productivity——Based on High-tech Industry and Building Industry

文章以建筑业和高科技产业分别作为劳动密集型和知识密集型行业的代表,使用Geweke的线性反馈模型分析了劳动生产率增长对实际工资的贡献,发现劳动密集型行业工资对劳动生产率的推动力要高于知识密集型行业,但劳动生产率对工资的推动力不及后者。但在绝对量上,两个行业无论是工资对劳动生产率还是劳动生产率对工资的影响值都不大,说明目前我国行业间收入差距并未成为影响劳动生产率的主要因素,而且劳动生产率差异能够在一定程度上解释行业间收入差距,但即使是在没有行政垄断的行业,生产率差异也不是构成行业间收入差距(或劳动力成本差异)的主要原因。

The paper,taking building industry and high-tech industry respectively as examples of labor-intensive and knowledge-intensive industries,makes an analysis on contribution of labor productivity on practical wage by using GEWEKE model. The analysis shows that labor productivity of labor-intensive industry exerts less influence on wage than high-tech industry,while its wage has more influence on labor productivity than high-tech industry. The study shows that difference of productivity is not the main cause for income gap among different industries.