Industrial concentration and market integration in the European Union

摘要

Unlike previous cross-section studies which test predictions from the theory of industrial structure, we do not make an ex ante assumption about the geographical market at which competition takes place. We develop an econometric technique that endogenously determines whether the EU or member state is the appropriate market level for each industry, while also estimating a structural model of concentration and market size. Another novelty is that we use European national as well as aggregate EU data.Strong support is found for the importance of endogenous fixed costs in the theory of market structure.