School of Public Policy and Administration, Xi'an Jiaotong University, Xi'an, Shaanxi Province 710049, China.
Chaos. 2023 Feb;33(2):023114. doi: 10.1063/5.0101350.
Human behaviors are often subject to conformity, but little research attention has been paid to social dilemmas in which players are assumed to only pursue the maximization of their payoffs. The present study proposed a generalized prisoner dilemma model in a signed network considering conformity. Simulation shows that conformity helps promote the imitation of cooperative behavior when positive edges dominate the network, while negative edges may impede conformity from fostering cooperation. The logic of homophily and xenophobia allows for the coexistence of cooperators and defectors and guides the evolution toward the equality of the two strategies. We also find that cooperation prevails when individuals have a higher probability of adjusting their relation signs, but conformity may mediate the effect of network adaptation. From a population-wide view, network adaptation and conformity are capable of forming the structures of attractors or repellers.
人类行为往往受到从众的影响，但很少有研究关注参与者被假设只追求自身收益最大化的社会困境。本研究提出了一个在有符号网络中考虑从众行为的广义囚徒困境模型。模拟结果表明，当正边占主导地位时，从众有助于促进合作行为的模仿，而负边可能会阻碍从众促进合作。同质性和排外性的逻辑允许合作者和背叛者共存，并引导向两种策略的平等演化。我们还发现，当个体调整关系符号的概率较高时，合作会占主导地位，但从众可能会调节网络适应的影响。从总体来看，网络适应和从众能够形成吸引子或排斥子的结构。
