In elementary school, girls typically outperform boys in languages and boys typically outperform girls in math. The determinants of these differences have remained largely unexplored. Using rich data from Dutch elementary schools, we decompose the differences in achievement into gender...

This paper investigates whether encouraging children to become more physically active in their everyday life affects their primary school performance. We use data from a field quasi-experiment called the Active Living Program, which aimed to increase active modes of transportation to school and...

This research develops a theory and presents empirical evidence of a link between economicoutcomes and genetic evolution. Important properties for successful analysis of such a link arefound in the adaptive immune system and particularly in the major histocompatibilitycomplex (MHC), a...

The model developed in this paper explains differences in the division of labour across firmsas a result of computer technology adoption. We find that changes in the division of labourcan result both from reduced production time and from improved communicationpossibilities. The first shifts the...

This research develops a theory and presents empirical evidence of a link between economicoutcomes and genetic evolution. Important properties for successful analysis of such a link arefound in the adaptive immune system and particularly in the major histocompatibilitycomplex (MHC), a...

The model developed in this paper explains differences in the division of labour across firmsas a result of computer technology adoption. We find that changes in the division of labourcan result both from reduced production time and from improved communicationpossibilities. The first shifts the...

In many Western countries, the relative weight of people – measured by the Body Mass Index (BMI) – has increased substantially in recent years, leading to an increasing incidence of overweight and related health problems. As with many forms of risky behavior, it is plausible that overweight...

In this paper, we develop an allocation model of workers differentiated by their field of study to test whether international differences in the wage structure can be explained by differences in labor demand and supply in each country. The model explicitly takes into account the effects of...

This paper models the impact of the diffusion of computers on the wage structure, starting from the observation that computer use increases individual productivity, but also the supply of goods. This latter effect negatively affects workers producing similar goods. If the productivity gain is...