This paper analyses the importance of scale economies by means of unbalanced plant-level panel data from three Norwegian manufacturing industries. Focus is on heterogeneous technologies, and unlike most previous work on micro data, the model description includes heterogeneity in both the scale...

In this volume, the rational choice model is extended to a framework of norm-guided theories of crime are incorporated. Based on this framework, a broad range of regression analyses of crime in various parts of the world is reviewed. Many general, methodological problems of empirical studies of...