Wage inequality between workers with different levels of educational attainment has been shown to increase over the life course. In this study, we investigate to what extent this growth is explained by temporary employment. Using linked employer-employee register data from the Netherlands, we follow the labour market careers of workers born in 1979. We decompose the impact of temporary employment on the change in the wage gap over the life course into two distinct components: (i) changes in group-specific temporary employment rates (risk) and (ii) changes in group-specific effects of temporary employment on wages (vulnerability). In line with previous research, we find a marked growth of the educational wage gap over the life course in the Netherlands. While group differences in temporary employment risk changed throughout the observation period to the detriment of less-educated workers, group differences in vulnerability to temporary employment diverged specifically during the early life course. Overall, temporary employment explains around 9 per cent of the change in the wage gap between workers with different levels of educational attainment by the age of 38 relative to age 28.

中文翻译：

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一生中的临时就业和工资不平等

不同教育程度工人之间的工资不平等已被证明在整个生命过程中不断加剧。在这项研究中，我们调查了这种增长在多大程度上是由临时就业来解释的。我们使用来自荷兰的雇主-雇员登记相关数据，跟踪 1979 年出生的工人的劳动力市场职业生涯。我们将临时就业对生命历程中工资差距变化的影响分解为两个不同的组成部分：(i) 变化特定群体的临时就业率（风险）和（ii）特定群体的临时就业对工资的影响的变化（脆弱性）。与之前的研究一致，我们发现荷兰人一生中的教育工资差距显着扩大。虽然临时就业风险的群体差异在整个观察期内发生了变化，对受教育程度较低的工人不利，但临时就业脆弱性的群体差异在生命早期就出现了差异。总体而言，临时就业解释了 38 岁时与 28 岁时不同教育程度工人之间工资差距变化的约 9%。