relation: http://eprints.imtlucca.it/647/
title: A generalized preferential attachment model for business firms growth rates: I. Empirical evidence
creator: Pammolli, Fabio
creator: Fu, Dongfeng
creator: Buldyrev, Sergey V.
creator: Riccaboni, Massimo
creator: Matia, Kaushik
creator: Yamasaki, Kazuko
creator: Stanley, H. Eugene
subject: HB Economic Theory
subject: HG Finance
subject: QC Physics
description: We introduce a model of proportional growth to explain the distribution P(g) of business firm growth rates. The model predicts that P(g) is Laplace in the central part and depicts an asymptotic power-law behavior in the tails with an exponent ζ = 3. Because of data limitations, previous studies in this field have been focusing exclusively on the Laplace shape of the body of the distribution. We test the model at different levels of aggregation in the economy, from products, to firms, to countries, and we find that the predictions are in good agreement with empirical evidence on both growth distributions and size-variance relationships. 
publisher: Springer
date: 2007
type: Article
type: PeerReviewed
identifier:   Pammolli, Fabio and Fu, Dongfeng and Buldyrev, Sergey V. and Riccaboni, Massimo and Matia, Kaushik and Yamasaki, Kazuko and Stanley, H. Eugene  A generalized preferential attachment model for business firms growth rates: I. Empirical evidence.  The European Physical Journal B, 57 (2).  pp. 127-130.  ISSN 1434-6028      (2007)  
relation: http://dx.doi.org/10.1140/epjb/e2007-00133-4
relation: 10.1140/epjb/e2007-00133-4