We shed new light on the effects of having children on hourly wages by exploiting access to data on the entire population of employed same-sex twins in Denmark. Our second contribution is the use of administrative data on absenteeism; the amount of hours off due to holidays and sickness. Our...

When treatment effects of active labour market programmes are heterogeneous in anobservable way across the population, the allocation of the unemployed into differentprogrammes becomes a particularly important issue. In this paper, we present a statisticalmodel designed to improve the present...

We consider the consequences of working part-time on supplementary unemployment insurance benefits in the Danish labour market. Following the timing-of-events approach we estimate causal effects of subsidized part-time work on the hazard rate out of unemployment insurance benefit receipt. We...

Many targeted childhood interventions such as the Perry Preschool Project select eligible children based on a risk score. The variables entering the risk score and their corresponding weights are usually chosen ad hoc and are unlikely to be optimal. This paper develops a simple economic model...

This paper investigates whether the stepping-stone effect of temporary agency employment varies over the business cycle. Using German administrative data for the period 1985-2012 and an estimation framework based on the timing-of-events model, we estimate in-treatment and post-treatment effects...

This paper makes use of the randomized allocation of workers on sick leave in Denmark into self-management support, to examine the role of beliefs about control for prolonged absenteeism due to illness. Our results demonstrate that the ability of the intervention to lead sick-listed workers...

We analyze the effect of substituting a weekly mathematics lessons in primary school grades 1-3 with a lesson in mathematics based on chess instruction. We use data from the City of Aarhus in Denmark, combining test score data with a comprehensive data base from administrative register. We use a...