We identify effects of age at school entry (ASE) on the development of child temperament. Our analysis is based on psychometric measures from a longitudinal cohort study of children in the Rhine-Neckar region in central Germany. In children with a higher ASE due to a birthday late in the year,...

The literature on treatment effects focuses on gross benefits from program participation. We extend this literature by developing conditions under which it is possible to identify parameters measuring the cost and net surplus from program participation. Using the generalized Roy model, we...

The study of the innovative output of firms often relies on a count of patents filed at one single office of reference such as the European Patent Office (EPO). Yet, not all firms file their patents at the EPO, raising the specter of a selection bias. Using a novel dataset of the whole...

This paper examines the role of venture capital on a firm's innovation activities by using a data set of German technology-based firms founded between 1996 and 2005. Innovation is proxied by patent counts and an index of innovativeness which reflects the degree to which a young firm has...

Benefit sanctions imposed on non-compliant welfare recipients are a new element in the German welfare system. In practice, the sanction policy and the application of sanctions vary considerably across the 439 welfare agencies. Based on combined administrative and survey data, these differences...

While there is a broad literature on the general wage effect of training, little is known about the effects of different training forms and about the effects for heterogeneous training participants. This study therefore adds two aspects to the literature on earnings effects of training. First,...

Empirical work on continuing training in Germany provides surprisingly divergent evidence on the incidence of training. This makes comparison of econometric analyses of the impact of training on labour market outcomes di?cult. Three large German data sets are used here to bring to light the data...

Diese Studie versucht Eigenschaften zu identifizieren, die das Beschäftigungswachstum junger deutscher Unternehmen in den neunziger Jahren beeinflussen. Um für die unterschiedlichen wirtschaftlichen Rahmenbedingungen zu kontrollieren, werden die empirischen Analysen getrennt für Ost- und...

In this paper, I contrast the quality of part-time jobs - in terms of hourly wage rates - with those of full-timers. Using the Netherlands as a benchmark, helps to assess the size and seriousness of the estimated wage differentials in Germany. Based on two comparable household surveys, I...

We estimate the effects of hiring subsidies for older workers on transitions from unemployment to employment in Germany. Using a natural experiment, our first set of estimates is based on a legal change extending the group of eligible unemployed persons. A subsequent legal change in the opposite...