Social issues are generally discussed by highly-involved and less-involved people to build social norms defining what has to be thought and done about them. As self-involved agents share different attitude dynamics to other agents [Wood, W., Pool, G., Leck, K. and Purvis, D., Self-definition, defensive processing, and influence: The normative impact of majority and minority groups, J. Pers. Soc. Psychol. (1996) 1181–1193], we study the emergence and evolution of norms through an individual-based model involving these two types of agents. The dynamics of self-involved agents is drawn from [Huet, S. and Deffuant, G., Openness leads to opinion stability and narrowness to volatility, Adv. Complex Syst. 13 (2010) 405–423], and the dynamics of others, from [Deffuant, G., Neau, D., Amblard, F. and Weisbuch, G., Mixing beliefs among interacting agents, Adv. Complex Syst. 3 (2001) 87–98]. The attitude of an agent is represented as a segment on a continuous attitudinal space. Two agents are close if their attitude segments share sufficient overlap. Our agents discuss two different issues, one of which, called main issue, is more important for the self-involved agents than the other, called secondary issue. Self-involved agents are attracted to both issues if they are close to the main issue, but shift away from their peer’s opinion if they are only close on the secondary issue. Differently, non-self-involved agents are attracted by other agents when they are close on both the main and secondary issues. We observe the emergence of various types of extreme minor clusters. In one or different groups of attitudes, they can lead to an already-built moderate norm or a norm polarized on secondary and/or main issues. They can also push disagreeing agents gathered in different groups to a global moderate consensus.

中文翻译：

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有限的信心代理人中很少有自我参与的代理人可以改变规范

社会问题通常由高度参与和参与程度较低的人讨论，以建立社会规范，定义必须思考和做的事情。由于自我参与的代理人与其他代理人分享不同的态度动态 [Wood, W., Pool, G., Leck, K. 和 Purvis, D.，自我定义、防御性处理和影响：多数和少数的规范影响团体，J. Pers。社会党。心理学。(1996) 1181–1193]，我们通过涉及这两种类型的代理的基于个体的模型来研究规范的出现和演变。自我参与代理的动态来自 [Huet, S. 和 Deffuant, G.，开放性导致意见稳定性和波动性狭窄，Adv. 复杂的系统。13 (2010) 405–423]，以及其他人的动态，来自 [Defuant, G., Neau, D., Amblard, F. 和 Weisbuch, G.，交互代理之间的混合信念，进阶。复杂的系统。3 (2001) 87–98]。代理人的态度被表示为连续态度空间上的一个片段。如果两个智能体的态度段共享足够的重叠，则它们是接近的。我们的代理人讨论了两个不同的问题，其中一个称为主要问题，对自我参与的代理人来说比另一个更重要，称为次要问题。如果他们接近主要问题，则自我参与的代理人会被这两个问题所吸引，但如果他们只在次要问题上接近，他们就会远离同行的意见。不同的是，非自我参与的代理人在主要和次要问题上都接近时会被其他代理人所吸引。我们观察到各种类型的极小星团的出现。在一组或不同组的态度中，它们可以导致已经建立的温和规范或在次要和/或主要问题上两极分化的规范。他们还可以推动聚集在不同群体中的不同代理人达成全球温和共识。