Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2002-12-10
Physica A 323 (2003) 663 - 676
Physics
Condensed Matter
Statistical Mechanics
16 pages, 11 figures
Scientific paper
10.1016/S0378-4371(03)00053-0
The emergence of labor division in multi-agent system is analyzed by the method of statistical physics. Considering a system consists of N homogeneous agents. Their behaviors are determined by the returns from their production. Using the Metropolis method in statistical physics, which in this model can been regarded as a kind of uncertainty in decision making, we constructed a Master equation model to describe the evolution of the agents distribution. When we introduce the mechanism of learning by doing to describe the effect of technical progress and a formula for the competitive cooperation, the model gives us the following interesting results: (1) As the results of long term evolution, the system can reach a steady state. (2) When the parameters exceed a critical point, the labor division emerges as the result of phase transition. (3) Although the technical progress decides whether or not phase transition occurs, the critical point is strongly effected by the competitive cooperation. From the above physical model and the corresponding results, we can get a more deeply understanding about the labor division.
Di Zengru
Wu Jinshan
Yang Z. R.
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