Die Rendite von Sparkassen und Genossenschaftsbanken liegt in Deutschland über der von privaten Geschäftsbanken. Das vorliegende Papier bietet einen theoretischen Erklärungsansatz, der diese Renditeunterschiede auf Differenzen in der Kreditvergabestrategie zurückführt. Dieses Modell zeigt,...

Network-effects may lead to imperfect competition and may therefore make a Strategie trade policy attractive for a country exporting network goods. I analyze the implications of Strategie trade policy in a model of horizontal produetdifferentiation with network effects. Within this framework,...

Computer-owners combine complementary goods to a computer-system. They exchange data with others and between different applications. These interdependencies lead to three different network effects, which are explained in the framework of Hotelling models. In the framework of a one-dimensional...