This paper focuses on the functional specialisation of a system of cities, with particular attention to the role and the formation process of secondary business centers. At the European level, the latters can be identified in the large number of regional capitals, and properly defined as cities...

This paper studies how information and communication technology (ICT) affects the firm geographic organization and its implications on aggregate efficiency. ICT can widen firms' geographic span of control by reducing their internal communication costs. Empirical evidence from confidential US...

This paper focuses on the functional specialisation of a system of cities, with particular attention to the role and the formation process of secondary business centers.At the European level, the latters can be identified in the large number of regional capitals, and properly defined as cities...

This paper studies the spatial structure of firms, both theoretically and empirically. Two new facts in Danish register data motivate the analysis. First, firms have become more fragmented over time. Second, headquarters (HQ) establishments have become more manager intensive, despite a...

We document and then develop a model explaining and relating changes in firms' organisation and in urban structure. Sharing of business services by headquarters and of sector-specific intermediates by production plants within a city reduces costs, while congestion increases with city size. A...

Departing from research on expanding, high-technology industries, we study the impact of agglomeration in a declining, low-technology industry. The setting is U.S. footwear manufacturing between 1975 and 1991, when import competition rendered local support critical for survival. We examine how...

We analyse the clustering of European ICT activities. Our focus is primarily on the ICT manufacturing industries in the EU countries. We find a clear and intensifying concentration tendency of ICT-related production and R&D. As a rule, originally specialized countries have become more so. In...

This paper studies how information and communication technology (ICT) affects the firm geographic organization and its implications on aggregate efficiency. ICT can widen firms' geographic span of control by reducing their internal communication costs. Empirical evidence from confidential US...

This paper studies how information and communication technology (ICT) affects the firm geographic organization and its implications on aggregate efficiency. ICT can widen firms’ geographic span of control by reducing their internal communication costs. Empirical evidence from confidential US...