With the introduction of a new welfare benefit system in 2005, Germany implemented quite strict benefit sanctions for welfare recipients aged younger than 25 years. For all types of non-compliance except for missing appointments, their basic cash benefit is withdrawn for three months. A second...

This paper assesses the dynamics of treatment effects arising from variation in the duration of training. We use German administrative data that have the extraordinary feature that the amount of treatment varies continuously from 10 days to 395 days (i.e. 13 months). This feature allows us to...