摘要
主要讨论集体行动的特征,社会机理,集体行动研究的主要两类模型阈值模型和效用模型.然后,综合考虑两类模型的优缺点并引入心理阈值理论,在经典Granovetter阈值模型基础上给出了一种融合心理学阈值理论和经济学效用理论的集体行为阈值模型.并在考虑群体空间因素和朋友社会影响强度条件下对所提出的模型进行了仿真研究,得到了集体行动的相变临界值,均衡点(达到平衡状态后参与数量).文章尝试运用阈值理论解释骚乱暴动等激进群体行为,以及Web上群体观点极化与社会认同理论之间的联系.最后,讨论了提出的模型与Granovetter模型之间的不同及应用范围.
In this paper, we discuss the characteristics, social mechanisms of collective actions, and introduce the threshold and utility model, the two classic models in quantitative social analysis. Under the inspiration of classic Granovetter＇s threshold model, we provide a novel model incorporating both advantages of utility, threshold model and psychological threshold principles. With the consideration of spatial factors and social network influences, numeric simulation is used to investigate the dynamics of collective action, such as critical phase transition, and final equilibrium number who participate in the collective action. In light of threshold model and social identity theory, we try to explain the social mechanism of radical collective action, and opinions polarization on Web. Finally, application scopes of the provided model and classic Granovetter＇s model are also discussed.
出处
《系统科学与数学》
CSCD
北大核心
2014年第5期550-564,共15页
Journal of Systems Science and Mathematical Sciences
基金
国家重点基础研究发展计划(2010CB731405)
国家自然科学基金(71171187)
大理学院科研启动基金(KYBKY1219210110)资助课题
关键词
集体行动
社会机理
阈值模型
临界相变.
Collective action, social mechanisms, threshold model, critical phase transition.
