Zusammenfassung: This dissertation includes four studies in the field of empirical labour economics with a focus on risk in labour markets. In Chapter 1 the effect of an employment subsidy programme on early apprenticeship dropout is evaluated. The programme can be considered a preventive...

This paper analyzes how life-cycle unemployment of former apprentices depends on the size of the training firm. We start from the hypotheses that the size of training firms reduces long-run cumulated unemployment exposure, e.g. via differences in training quality and in the availability of...