Noise induced unanimity and disorder in opinion formation

Abstract

We propose an opinion dynamics model based on Latané's social impact theory. Actors in this model are heterogeneous and, in addition to opinions, are characterised by their varying levels of persuasion and support. The model is tested for two and three initial opinions randomly distributed among actors. We examine how the noise (randomness of behaviour) and the flow of information among actors affect the formation and spread of opinions. Our main research involves the process of opinion formation and finding phases of the system in terms of parameters describing noise and flow of the information for two and three opinions available in the system. The results show that opinion formation and spread are influenced by both (i) flow of information among actors (effective range of interactions among actors) and (ii) noise (randomness in adopting opinions). The noise not only leads to opinions disorder but also it promotes consensus under certain conditions.

30 pages including two Fortran codes

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• When Pull Turns to Shove: A Continuous-Time Model for Opinion Dynamics
• Vanishing opinions in Latané model of opinion formation
• Thermal properties of structurally balanced systems on classical random graphs
• Understanding the nature of the long-range memory phenomenon in socioeconomic systems
• Universality of opinions disappearing in sociophysical models of opinion dynamics: From initial multitude of opinions to ultimate consensus
• Social clustering reinforces external influence on the majority opinion model
• Fine structure of phase diagram for social impact theory
• Are randomness of behavior and information flow important to opinion forming in organization?