Diffusion of competing innovations in influence networks
Diffusion of competing innovations in influence networks
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DOI：
10.1007/s11403-012-0106-5
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发表时间：
2013-04
影响因子：
1.1
通讯作者：
Jeehong Kim;Wonchang Hur
中科院分区：
文献类型：
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作者：
Jeehong Kim;Wonchang Hur
虽然影响网络是影响扩散过程的关键因素，但在传统的扩散研究中，它通常是固定的或假设遵循一些典型的拓扑结构。本研究的目的是探讨创新扩散是如何被个体间存在的不同影响关系结构所改变。我们引入了一个扩展版本的定期有向图，可以表示各种影响力之间的关系的影响者和追随者。我们专注于影响关系的三个关键特征（即垄断，本地化和多样化的意见），并研究它们是如何与某些宏观行为的影响，采用基于代理的模拟。仿真结果表明，当影响力被少数影响者垄断时，市场会被单一产品“锁定”。我们还发现，当影响关系变得复杂的影响者和追随者增加，市场不能被归类为一个单一的类型，而是变得随机和不可预测的。我们的模型成功地证明了集体行为的一个基本原则，即在意见垄断的情况下促进行为的一致性，而在意见多样化的情况下出现随机的、不可预测的行为模式。
Although an influence network is a crucial factor affecting diffusion processes, it is generally fixed or assumed to follow some typical topologies in traditional diffusion research. The purpose of this study is to examine how innovation diffusion is changed by different influence relationship structures existing among individuals. We introduce an extended version of the regular digraph that can represent various influence relationships among influentials and followers. We focus on three key features of influence relationships (i.e. monopolization, localization, and diversification of opinions) and examine how they are associated with certain macroscopic behavioral regularities by employing agent-based simulation. The simulation results show that market becomes “locked-in” to a single product when influences are monopolized by few influentials. We also find that when influence relationship becomes complex as influentials and followers increase, market cannot be categorized by a single typology, but becomes random and unpredictable. Our model demonstrates successfully an underlying principle of collective behavior that uniformity of behavior is promoted under monopolization of opinions and random, unpredictable behavioral patterns emerge from diversification of opinions.