Supervised dimension reduction methods have been extensively applied in different scientific fields like biology and medicine in recent years. However, they have hardly ever been used in micro economics, and in particular cost function modeling. Nonetheless, these methods can also be useful in...

Seit der Deregulierung des deutschen Strommarktes im Jahre 1998 werden die Netznutzungsentgelte durch Verhandlungen zwischen den Energieerzeugern und den industriellen Nutzern festgelegt. Da die Stromnetze als nicht-bestreitbare natürliche Monopolisten anzusehen sind, können die Netzbetreiber...

In this paper, we conduct a pan-European efficiency analysis to investigate the performance of European railways with a particular focus oil economics of vertical integration. We test the hypothesis that integrated railways realise economies of scope and, thus, produce railway services with a...