This paper presents an analysis of the failure and completion rates of graduate students in economics at three universities in The Netherlands. We find that an indicator of the research productivity of the supervisor is an important determinant of the completion and dropout rates. However, this...

For various reasons the relationship between age and productivity is a matter of policy concern. I present new empirical research showing how productivity is affected by age. I study age effects at the individual level by analyzing data on running and publishing in economic journals. Furthermore...

Recent evaluations of active labor market policies are not very optimistic about their effectiveness to bring unemployed back to work. An important reason is that unemployed get locked-in, that is they reduce their effort to find a regular job. This paper uses an administrative dataset from the...

This paper uses an administrative dataset to analyze to what extent active labor market policies in the Slovak Republic have been beneficial for unemployed workers. The focus is on two types of temporary subsidized jobs and on training. Short-term subsidized jobs seem to be the most efficient...

This paper studies the wage effects of the use of alcohol and tobacco. The analysis based on a recent survey in the Netherlands shows that for males the use of tobacco has a negative wage effect of about 10% while the use of alcohol has a positive wage effect of about the same size. The wages of...

Ridder and Woutersen (2003) have shown that under a weak condition on the baseline hazard there exist root-N consistent estimators of the parameters in a semiparametric Mixed Proportional Hazard model with a parametric baseline hazard and unspecified distribution of the unobserved heterogeneity....

Adult height, as a marker of childhood health, has recently become a focus in understanding the relationship between childhood health and health outcomes at older ages. However, measured height of the older individuals is contaminated by height shrinkage from aging. Height shrinkage, in turn may...