Hall's (1988) approach to study price- cost margins is adapted to simultaneously estimate price- cost margins and scale economies from a panel of plant level data. The paper shows how this methodology provides a very flexible framework with only a few, economically interesting parameters to be...

This study empirically examines the relationship between crime, deterrence and unemployment in Greece. A regional dataset over the period 1991-1998 was collected and analyzed. Our econometric methodology follows the Generalized Method of Moments (GMM) estimator applied to dynamic models of panel...