Over the years knowledge has come to be seen as crucial for economic progress, and proximity as conducive to knowledge exchange. As a result, knowledge-related processes are often considered as possible explanation of the spatial agglomeration of economic activities. However, knowledge and...

In social psychology, poor performance of individuals in teams is usually classified under the heading of ‘social loafing.’ In economics and administrative sciences, the concepts of ‘shirking’ and ‘free riding’ are used to denote poor performance by individuals working in...

The literature that tests for U-shaped relationships using panel data, such as those between pollution and income or inequality and growth, reports widely divergent (parametric and non-parametric) empirical findings. We explain why lack of identification lies at the root of these differences. To...

The literature suggests that competition among schools might increase quality. However, not much empirical evidence is present as only a few countries allow competition at a large scale. One exception is the Netherlands. Free parental choice is the leading principle of the Dutch education system...

Much attention has been paid to the influence of the institutional form of waste collection on costs. We extend this literature in three directions by including the unit-based pricing system. First, we show that unit-based pricing systems are more important from a cost-minimizing point of view...