Productivity Gap between Sectors and Double Duality in Labor Markets
Productivity Gap between Sectors and Double Duality in Labor Markets
复制标题
部门之间的生产率差距和劳动力市场的双重二元性
DOI：
--
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Gilad Brand
中科院分区：
文献类型：
--
作者：
Elise S. Brezis;Gilad Brand
在过去几十年中，贸易部门的生产率大幅提高，而在非贸易部门，尽管两个部门的人力资本增长相似，但每名工人的产出保持不变。本文认为，生产部门和高等教育部门的双重双重性以及个体能力的异质性可能解释了贸易行业和非贸易行业劳动生产率的差异。经济中的双重二元性使个人能够按能力分开，因此，这两个行业的人力资本是不同的。人力资本的异质性可以解释，尽管这两个部门的人力资本都有所增加，但在生产率和工资溢价方面仍存在差距。换言之，劳动力市场的双重二元性加剧了部门间的生产率差距，导致了人力资本的异质性。因此，一方面各国之间的流动性更大，另一方面部门之间的流动性更低，这两者之间形成了鲜明的对比。
Over the last decades, productivity in the tradable sector rose substantially, while in the non-tradable sector, output per worker has remained the same, despite a similar increase in human capital in both sectors. This paper shows that a double duality both in the production and the higher-education sectors as well as heterogeneous ability of individuals might explain the differences in labor productivity between tradable and non-tradable industries. The double duality in the economy enables a separation of individuals by their ability, and in consequence, human capital in both industries is different. The heterogeneity in human capital can explain that despite an increase in human capital in both sectors there is still a gap in productivity and in wage premium. In other words, the productivity gap between sectors is fueled by the double duality in labor markets, leading to heterogeneity in human capital. In consequence, there is a contrast between on one hand, more mobility across countries, and on the other hand, less mobility between sectors.