Opinion dynamics involving contrarian and independence behaviors based on the Sznajd model with two-two and three-one agent interactions

Abstract

We investigate the opinion evolution of outflow dynamics based on the Sznajd model on a complete graph involving contrarian and independence behaviors. We consider a group of four spins representing the social agents with the following scenarios: (1) scenario two-two with contrarian agents or independence agents and (2) scenario three-one with contrarian or independence agents. All of them undergo a second-order phase transition according to our simulation. The critical point decreases exponentially as $\lambda$ and $f$ increases, where $\lambda$ and $f$ are contrarian and flexibility factors, respectively. Furthermore, we find that the critical point of scenario three-one is smaller than that of scenario two-two. For the same level of $\lambda$ and $f$, the critical point of the scenario involving independence is smaller than the scenario with contrarian agents. From a sociophysics point of view, we observe that scenario three-one can likely reach a stalemate situation rather than scenario two-two. Surprisingly, the scenarios involving contrarians have a higher probability of achieving a consensus than a scenario involving independence. Our estimates of the critical exponents indicate that the model is still in the same universality class as the mean-field Ising model.

arXiv comment12 pages, 12 figures

References in corpus (20)

• Statistical physics of social dynamics
• Opinion evolution in closed community
• Minority Opinion Spreading in Random Geometry
• Sociophysics: A review of Galam models
• Dynamics of Majority Rule
• Does a Single Zealot Affect an Infinite Group of Voters ?
• Contrarian Deterministic Effect: the "Hung Elections Scenario"
• The role of inflexible minorities in the breaking of democratic opinion dynamics
• Phase transitions in the q-voter model with two types of stochastic driving
• Majority versus minority dynamics: Phase transition in an interacting two-state spin system
• Social Influences in Opinion Dynamics: the Role of Conformity
• Spontaneous emergence of contrarian-like behaviour in an opinion spreading model
• Phase transition in the Sznajd model with independence
• Role of conviction in nonequilibrium models of opinion formation
• A new model of binary opinion dynamics: coarsening and effect of disorder
• Phase transitions in the q-voter model with noise on a duplex clique
• Inflexibility and independence: Phase transitions in the majority-rule model
• Phase transition in kinetic exchange opinion models with independence
• Opinion dynamics as a movement in a bistable potential
• Phase transitions and universality in the Sznajd model with anticonformity