Identification of subgroups of patients for which treatment A is more effective than treatment B, and vice versa, is of key importance to the development of personalized medicine. Several tree-based algorithms have been developed for the detection of such treatment-subgroup interactions. In many...

Early intervention is considered the optimal response to developmental disorders in children. We evaluate a nationwide developmental screening programme for preschoolers in Austria and the resulting interventions. Identification of treatment effects is determined by a birthday cutoff-based...

In an experiment we first elicit the distributional preferences of subjects and then let them bid for a lottery, either in a Becker-DeGroot-Marschak (BDM) mechanism or a Vickrey auction (VA). Standard theory predicts that altruistic subjects underbid in the VA - compared to the BDM - while...

Using a spatial systems estimator to incorporate spatial interactions and endogeneity of income levels and migration, this paper finds a positive effect of migration on cohesion within the European Union on the NUTS 2 level. As migration can generally be observed from low to high income regions,...

By means of a coin tossing experiment Cohn et al. (2014, Nature 516, 86-89, doi:10.1038tinature13977) study business culture in the banking industry and report that employees of a large, international bank behave honestly in a control condition while a significant proportion of them becomes...

In this study we examine the dynamic interactions between credit growth and output growth using the spillover index approach of Diebold and Yilmaz (2012). Based on quarterly data on credit growth and GDP growth over the period 1957Q1-2012Q4 for the G7 countries we find that: i) spillovers...

In this meta-analysis we provide new quantitative evidence on the relationship between the characteristics of working contracts and worker's health. We examine 52 studies covering 26 countries in the time period 1984 - 2010 with a combined sample size of 192. We apply a random effects model...

This paper investigates whether a designer can improve both the incentive provision and the selection performance of a promotion contest by making the competition more (or less) dynamic. A comparison of static (one-stage) and dynamic (two-stage) contests reveals that this is not the case. A...

In markets for credence goods sellers are better informed than their customers about the quality that yields the highest surplus from trade. This paper studies second-degree price-discrimination in such markets. It shows that discrimination regards the amount of advice offered to customers and...

The R package partykit provides a flexible toolkit for learning, representing, summarizing, and visualizing a wide range of tree-structured regression and classification models. The functionality encompasses: (a) basic infrastructure for representing trees (inferred by any algorithm) so that...