De Fabritiis, G.; Pammolli, F.; Riccaboni, M. - In: Physica A: Statistical Mechanics and its Applications 324 (2003) 1, pp. 38-44
We study size and growth distributions of products and business firms in the context of a given industry. Firm size growth is analyzed in terms of two basic mechanisms, i.e., the increase of the number of new elementary business units and their size growth. We find a power-law relationship...