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Statistical Properties of Business Firms Structure and Growth

Kaushik Matia·Dongfeng Fu·Sergey V. Buldyrev·Fabio Pammolli·Massimo Riccaboni·H. Eugene Stanley
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Abstract

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 $β= 0.20 \pm 0.01$. We also find that the average sales of products scales with the firm sales as a power law with exponent $α= 0.57 \pm 0.02$. And that the average number products of a firm scales with the firm sales as a power law with exponent $γ= 0.42 \pm 0.02$. We compare these findings with the predictions of models proposed till date on growth of business firms.

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Kaushik Matia, Dongfeng Fu, Sergey V. Buldyrev, Fabio Pammolli, Massimo Riccaboni, H. Eugene Stanley. 2005-02-15. Statistical Properties of Business Firms Structure and Growth. https://doi.org/10.1209/epl%2Fi2004-10070-4

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