We present a model that explains how a cluster moves through a life cycle and why this movement differs from the industry life cycle. The model is based on three key processes: the changing heterogeneity in the cluster describes the movement of the cluster through the life cycle; the geographical...

The paper Investigates stability and change of regional economic activities in the longrun.As the unit of analysis we selected the machine tool industry in West Germany forthe years 1953 to 2002. We spot a strong variance in the activities between the differentregions. These differences are...