Gradually truncated log-normal in USA publicly traded firm size distribution
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Data
2007-03-01
Autores
Gupta, Hari M.
Campanha, Jose R.
de Agular, Daniela R.
Queiroz, Gabriel A.
Raheja, Charu G.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Elsevier B.V.
Resumo
We study the statistical distribution of firm size for USA and Brazilian publicly traded firms through the Zipf plot technique. Sale size is used to measure firm size. The Brazilian firm size distribution is given by a log-normal distribution without any adjustable parameter. However, we also need to consider different parameters of log-normal distribution for the largest firms in the distribution, which are mostly foreign firms. The log-normal distribution has to be gradually truncated after a certain critical value for USA firms. Therefore, the original hypothesis of proportional effect proposed by Gibrat is valid with some modification for very large firms. We also consider the possible mechanisms behind this distribution. (c) 2006 Published by Elsevier B.V.
Descrição
Palavras-chave
firm size, gradually truncated log-normal, Gibrat theory
Como citar
Physica A-statistical Mechanics and Its Applications. Amsterdam: Elsevier B.V., v. 375, n. 2, p. 643-650, 2007.