本文提出了两个模型，分别将心理学因素作为社会网络特征的决定因素和后果加以例示。网络形成过程中存在内生性：一方面，社会经验影响个体；另一方面，个体当前的心理状态与特质亦影响网络的演化。第一个模型是基于Bianconi-Barabási网络的基于智能体（agent-based）模型，用于解释个体网络规模、外向性及年龄之间的关系。第二个模型探讨了城市部落（urban tribes）的涌现现象，将其归因于个体与具有不同特质和观点者进行沟通的倾向性降低。

This paper presents two models that exemplify psychological factors as a determinant and as a consequence of social network characteristics. There is an endogeneity considered in network formation: while the social experiences have impacts on people, their current psychological states and traits affect network evolution. The first model is an agent-based model over Bianconi-Barabasi networks, used to explain the relation between network size, extroversion, and age of individuals. The second model deals with the emergence of urban tribes as a consequence of a smaller propensity to communicate with different with different traits and opinions.