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arXiv physics/0512144physics.soc-phcond-mat.stat-mech
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论竞争性社会的结构

On The Structure of Competitive Societies

E. Ben-Naim, F. Vazquez, S. Redner

摘要:

我们通过一个简单的相互作用粒子系统来模拟社会结构的动态。个体代理的社会地位由通过两个抵消过程改变的整数值适应度表示。当两个智能体相互作用时,其中一个智能体会前进:更适合的概率为p,更不适合的概率为1-p。通过对种群适应度分布的基本主方程的尺度分析,我们发现了四种不同的社会结构作为控制参数p和r的函数。其中包括:(1)一个静态的下层社会,所有的代理人都有有限的适应性;(2)一个向上流动的中产阶级社会;(3)一个等级社会,其中有限的一部分人口属于中产阶级,一个补充部分属于下层阶级;(4)一个平等主义社会,所有的代理人都向上流动,并具有几乎相同的适应性。我们确定在这四个阶段的适应度分布的基本特征。

英文摘要:

We model the dynamics of social structure by a simple interacting particle system. The social standing of an individual agent is represented by an integer-valued fitness that changes via two offsetting processes. When two agents interact one advances: the fitter with probability p and the less fit with probability 1-p. The fitness of an agent may also decline with rate r. From a scaling analysis of the underlying master equations for the fitness distribution of the population, we find four distinct social structures as a function of the governing parameters p and r. These include: (i) a static lower-class society where all agents have finite fitness; (ii) an upwardly-mobile middle-class society; (iii) a hierarchical society where a finite fraction of the population belongs to a middle class and a complementary fraction to the lower class; (iv) an egalitarian society where all agents are upwardly mobile and have nearly the same fitness. We determine the basic features of the fitness distributions in these four phases.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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