Dynamics of efficiency: A simple model

被引：21

作者：

Majumdar, SN ^{[1
]}

Krapivsky, PL

机构：

[1] Univ Toulouse 3, Phys Quant Lab, CNRS, UMR 5626, F-31062 Toulouse, France

[2] Tata Inst Fundamental Res, Mumbai 400005, India

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

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

来源：

PHYSICAL REVIEW E | 2001年 / 63卷 / 04期

关键词：

D O I：

10.1103/PhysRevE.63.045101

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We propose a simple model that describes the dynamics of efficiencies of competing agents. Agents communicate leading to increase of efficiencies of underachievers, and an efficiency of each agent can increase or decrease irrespectively of other agents. When the rate of deleterious changes exceeds a certain threshold, the system falls into a stagnant phase. In the opposite situation, the average efficiency improves with asymptotically constant rate and the efficiency distribution has a finite width. The leading algebraic corrections to the asymptotic growth rate are also computed.

引用

页码：451011 / 451014

页数：4

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