Dynamics of efficiency: A simple model
Abstract
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.
 Publication:

Physical Review E
 Pub Date:
 April 2001
 DOI:
 10.1103/PhysRevE.63.045101
 arXiv:
 arXiv:condmat/0012214
 Bibcode:
 2001PhRvE..63d5101M
 Keywords:

 05.40.a;
 05.70.Ln;
 87.23.Ge;
 Fluctuation phenomena random processes noise and Brownian motion;
 Nonequilibrium and irreversible thermodynamics;
 Dynamics of social systems;
 Condensed Matter  Statistical Mechanics
 EPrint:
 4 pages, 2 figures, 2column revtex format