Strong regional clusters are increasingly seen as a response to economic globalization by policy makers and regional development agencies. The reasoning of competitive advantages of countries and regions with enterprises organized in clusters has mainly been popularized by Porter (1990, 1998,...

This paper investigates whether localization economies as brought forward by Marshall (1890) or urbanization economies as mentioned by Jacobs (1970) are more decisive for regional gross value added per capita. Our novel approach is to explicitly allow for interdependencies between these two...