This paper evaluates traineeships, a voluntary programme of work placement and preparation that aims to help young unemployed people in England compete for jobs and apprenticeships. Applying the method of local instrumental variables to administrative data, we estimate the marginal treatment effects on apprenticeship take-up and employment. The heterogeneous impacts are then aggregated to form an estimate of the average impact of treatment for all participants. The results suggest that, among younger trainees, participation increases the probability of becoming an apprentice and that this holds across the distribution of unobserved heterogeneity. For older trainees, we find no significant effect on the probability of becoming an apprenticeship on average but some evidence of a negative effect among those more resistant to participating. We find no effects on employment for either age group.

中文翻译：

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年轻人的学徒前培训：估计边际和平均治疗效果

本文评估了实习，这是一项自愿的工作安排和准备计划，旨在帮助英格兰的年轻失业者竞争工作和学徒。将局部工具变量的方法应用于行政数据，我们估计了学徒接受和就业的边际处理效应。然后将异质影响汇总以形成对所有参与者的平均治疗影响的估计。结果表明，在年轻的学员中，参与增加了成为学徒的可能性，并且这在未观察到的异质性分布中保持不变。对于年龄较大的学员，我们发现平均而言，对成为学徒的概率没有显着影响，但一些证据表明，在那些更不愿意参与的学员中存在负面影响。