Women whose first child is a boy work less than women with first-born girls. After a first-born boy the probability that women have more children increases. Higher fertility is a possible explanation for the lower labor supply of mothers.

We investigate whether the costs of job displacement differ between blue and white collar workers. In the short-run earnings and employment losses are substantial for both groups but stronger for white collars. In the long run, there are only weak effects for blue collar workers but strong and...

We use matched survey and administrative data to study interviewer and interview related determinants of misreporting on welfare receipt in interviews. In our data, 12.2 % of German welfare recipients underreport benefit receipt. We find that underreporting is more likely in formal and...

We use Swiss data to test whether intergenerational educational mobility is affected by the age at which children first enter (primary) school. Early age at school entry significantly affects mobility and reduces the relative advantage of children of better educated parents.