In this work we discuss the impact of the new ICT techno-economic paradigm upon the vertical and horizontal boundaries of the firm and ask whether the change in the sources of competitive advantage has resulted in changes in the size distribution of firms and also in the degree of concentration...

The role played by qualitative change in economic development is examined and a model is proposed in which changes in the composition of the economic system are generated by the evolution of the system itself.This model of economic development is driven by the creation of new industrial sectors....

The degree of endemic volatility in the number of firms and establishments varies considerably across industries. Examining the within-industry range of variation (max.-min.) of the number of firms over our sample period, the low and high values across U.S. manufacturing industries are 4 and...