We study the importance of noncognitive skills in explaining differences in the labor market performance of individuals by means of machine learning techniques. Unlike previous em- pirical approaches centering around the within-sample explanatory power of noncognitive skills our approach focuses...

We investigate the behaviour of the Lasso for selecting invalid instruments in linear instrumental variables models for estimating causal effects of exposures on outcomes, as proposed recently by Kang, Zhang, Cai and Small (2016, Journal of the American Statistical Association). Invalid...

We examine a new general class of hazard rate models for duration data, containing a parametric and a nonparametric component. Both can be a mix of a time effect and possibly time-dependent marker or covariate effects. A number of well-known models are special cases. In a counting process...

We estimate causal employment effects of investment subsidies for treated firms as a whole as well as heterogeneous effects depending on firm characteristics and economic environment. We modify the standard matching and difference-in-difference approach by introducing a combined statistical...

In the recent years more and more highdimensional data sets, where the number of parameters p is high compared to the number of observations n or even larger, are available for applied researchers. Boosting algorithms represent one of the major advances in machine learning and statistics in...

This paper provides evidence of heterogeneous treatment effects on trade from switching among three types of de-facto exchange rate regimes: freely floating, currency bands, and pegs or currency unions. A cottage literature at the interface of macroeconomics and international economics focuses...

This paper provides evidence of heterogeneous treatment effects on trade from switching among three types of de-facto exchange rate regimes: freely floating, currency bands, and pegs or currency unions. A cottage literature at the interface of macroeconomics and international economics focuses...

Bringing welfare recipients into jobs is a major goal of German labour market policy since a reform of the year 2005. Direct job creation providing participants with tem-porary subsidized jobs mainly in the non-profit sector plays an important role for achieving this goal. There are three...

Seit den Reformen im Jahre 2005 hat die deutsche Arbeitsmarktpolitik verstärkt das Ziel, erwerbsfähige Hilfebedürftige in Arbeit zu integrieren. Öffentlich geförderte Beschäftigung, die Arbeitslosengeld II-Empfänger eine vorübergehende subventionierte Beschäftigung vorwiegend im...