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Statistical Properties of Business Firms Structure and Growth

Listed author(s):
  • Kaushik Matia
  • Dongfeng Fu
  • Sergey V. Buldyrev
  • Fabio Pammolli
  • Massimo Riccaboni
  • H. Eugene Stanley

We analyze a database comprising quarterly sales of 55624 pharmaceutical products commercialized by 3939 pharmaceutical firms in the period 1992--2001. We study the probability density function (PDF) of growth in firms and product sales and find that the width of the PDF of growth decays with the sales as a power law with exponent $\beta = 0.20 \pm 0.01$. We also find that the average sales of products scales with the firm sales as a power law with exponent $\alpha = 0.57 \pm 0.02$. And that the average number products of a firm scales with the firm sales as a power law with exponent $\gamma = 0.42 \pm 0.02$. We compare these findings with the predictions of models proposed till date on growth of business firms.

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Paper provided by in its series Papers with number physics/0502081.

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Date of creation: Feb 2005
Publication status: Published in Europhys Lett 67 (3): 498-503 (2004)
Handle: RePEc:arx:papers:physics/0502081
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