This paper studies the frequency of observing a certain number of firms or employees in a region for a given industry. Various predictions for these frequencies are deduced from theoretical considerations. Then, the empirical distributions of 198 industries in Germany are analysed. It is found...

A stochastic model of the evolution of the firm population in a region and industry is developed. This model is used to make predictions about the expected probability distribution of the firm number in regions and their dynamics. Data on the spatial distribution of firms in Germany is used to...

We test the industry life cycle hypothesis for 205 industries in West Germany between 1976 and 2009. In particular we analyse whether population indicators follow a cyclical path. Using a novel non-linear regression approach to identify life cycles we find that the number of establishments,...