Policy makers are increasingly concerned about the combination of market power and massive data collection in digital markets. This concern is fueled by the theoretical prediction that more market power causes firms to collect ever more data from their users. We investigate the relationship...

Studies of spatial policy interdependence in (local) public policies usually concentrate on the relations between jurisdictions within a single analysed region, and disregard possible extra-regional effects. This paper evaluates the validity of such restriction by studying German local...

Studies of spatial policy interdependence in (local) public policies usually concentrate on the relations between jurisdictions within a single analysed region, and disregard possible extra-regional effects. This paper evaluates the validity of such restriction by studying German local...

This paper presents an application of the Generalised Error Correction Model (GECM) for heterogeneous factor demands based on the quadratic cost function. Using data for 26 West German manufacturing industries over the period 1976-1995, it turns out that less general specifications such as the...