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...

With its recently announced strategy "Europe 2020", the European Union picks up two major challenges: transforming the economy into a knowledge society with innovation as the main driver of economic growth and cohering a population whose workforce is shrinking and aging. Two benchmarks of this...