Opinion dynamics: Rise and fall of political parties
Opinion dynamics: Rise and fall of political parties
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DOI：
10.1209/epl/i2004-10421-1
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发表时间：
2005-03-01
期刊：
影响因子：
--
通讯作者：
Ben-Naim, E
中科院分区：
文献类型：
--
作者：
Ben-Naim, E
我们分析了政治组织的演变，使用一个模型，代理人通过两个竞争机制改变他们的意见。两个代理人可以相互作用并达成共识，此外，个体代理人可以通过随机扩散过程自发地改变他们的意见。我们发现了三种不同的可能性。对于强扩散，意见的分布是均匀的，没有形成政治组织（政党）。对于弱扩散，政党确实形成，而且，随着小政党合并为大政党，政治格局不断演变。如果没有扩散，就会形成一种模式：政党规模相同，拥有平等的利基市场。这些现象进行了分析，使用图案形成和缩放技术。
We analyze the evolution of political organizations using a model in which agents change their opinions via two competing mechanisms. Two agents may interact and reach consensus, and additionally, individual agents may spontaneously change their opinions by a random, diffusive process. We find three distinct possibilities. For strong diffusion, the distribution of opinions is uniform and no political organizations (parties) are formed. For weak diffusion, parties do form and furthermore, the political landscape continually evolves as small parties merge into larger ones. Without diffusion, a pattern develops: parties have the same size and they possess equal niches. These phenomena are analyzed using pattern formation and scaling techniques.