Power law scaling for a system of interacting units with complex internal structure

被引：186

作者：

Amaral, LAN ^{[1
]}

Buldyrev, SV

Havlin, S

Salinger, MA

Stanley, HE

机构：

[1] MIT, Dept Phys, Cambridge, MA 02139 USA

[2] Boston Univ, Ctr Polymer Studies, Boston, MA 02215 USA

[3] Boston Univ, Dept Phys, Boston, MA 02215 USA

[4] Bar Ilan Univ, Minerva Ctr, Ramat Gan, Israel

[5] Bar Ilan Univ, Dept Phys, Ramat Gan, Israel

[6] Boston Univ, Sch Management, Dept Finance & Econ, Boston, MA 02215 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.80.1385

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the dynamics of a system composed of interacting units each with a complex internal structure comprising many subunits and treat the case in which each subunit grows in a multiplicative manner. We propose a model for such systems in which the interaction among the units is treated in a mean field approximation and the interaction among subunits is nonlinear. We test the model and find agreement between our predictions and empirical results based on a large economics database spanning 20 years.

引用

页码：1385 / 1388

页数：4

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