This article estimates the causal impact of atypical work on the probability of finding regular, durable employment and on wage gains. Using a novel administrative dataset on the employment and unemployment history of 1/25^th of French workers and the timing-of-events approach, we find a robust stepping-stone effect and no evidence of a lock-in effect. Starting atypical work during unemployment raises the likelihood of finding regular work by 87% in the following months, and has no effect on wage growth. Interestingly, this effect is stronger for workers with weaker ties with the labor market, such as those unemployed for long periods, older individuals or those who worked fewer hours in the year prior to the start of the spell.

本文估计了非典型工作对找到正常，持久就业和工资增长的因果关系。在1/25的就业和失业历史使用了一种新的管理数据集^日法国工人和时序的事件的方法，我们找到一个强大的敲门砖作用，没有一个锁定效应的证据。在失业期间开始非常规工作会使在接下来的几个月中找到正规工作的可能性增加87％，并且对工资增长没有影响。有趣的是，这种影响对于与劳动力市场关系较弱的工人（例如长期失业的人，年龄较大的人或在法术开始前一年中工作时间较少的人）更强。