The paper examines in the laboratory how risk-taking situations are affected by the conditions of observing other's choices (observer) and being observed by others (source). By extending Yechiam et al.'s (2008) experimental design to the domain of gains we find that observers are more probable...

We model panel data of crime careers of juveniles from a Dutch Judicial Juvenile Institution. The data are decomposed into a systematic and an individual-specific component, of which the systematic component reflects the general time-varying conditions including the criminological climate....

A workbench for knowledge acquisition and data analysis is presented and its use for the classification of business cycles is investigated. Inductive Logic Programming (ILP) allows to model relations between intervals, e.g. time or value intervals. Moreover, the user of the workbench is...