Spontaneous emergence of contrarian-like behaviour in an opinion spreading model

Abstract

We introduce stochastic driving in the Sznajd model of opinion spreading. This stochastic effect is meant to mimic a social temperature, so that agents can take random decisions with a varying probability. We show that a stochastic driving has a tremendous impact on the system dynamics as a whole by inducing an order-disorder nonequilibrium phase transition. Interestingly, under certain conditions, this stochastic dynamics can spontaneously lead to agents in the system who are analogous to Galam's contarians.

4 eps figs, EuroPhys Lett style

References in corpus (10)

• Contrarian Deterministic Effect: the "Hung Elections Scenario"
• Analytical results for the Sznajd model of opinion formation
• Sociophysics: a personal testimony
• Nonequilibrium Phase Transitions in Directed Small-World Networks
• Introduction to Statistical Physics outside Physics
• System size stochastic resonance in a model for opinion formation
• The Sznajd model of consensus building with limited persuasion
• On controlling simple dynamics by a disagreement function
• Percolation and Galam Theory of Minority Opinion Spreading
• A modified one-dimensional Sznajd model

Cited by in corpus (49)

• Statistical physics of social dynamics
• Explosive transitions in complex networks' structure and dynamics: percolation and synchronization
• The role of inflexible minorities in the breaking of democratic opinion dynamics
• Opinion dynamics: models, extensions and external effects
• Conformists and contrarians in a Kuramoto model with identical natural frequencies
• Ordering dynamics with two non-excluding options: Bilingualism in language competition
• Phase transitions in the q-voter model with two types of stochastic driving
• The building up of individual inflexibility in opinion dynamics
• Phase transition in the Sznajd model with independence
• Role of conviction in nonequilibrium models of opinion formation
• Effects of mass media on opinion spreading in the Sznajd sociophysics model
• Discrete Opinion Dynamics with M choices
• Impact of contrarians and intransigents in a kinetic model of opinion dynamics
• Majority-vote model on directed Erdos-Renyi random graphs
• Mean Field and Mean Ensemble Frequencies of a System of Coupled Oscillators
• Phase transitions in the majority-vote model with two types of noises
• Van Kampen's expansion approach in an opinion formation model
• The Importance of Disagreeing: Contrarians and Extremism in the CODA model
• Inflexibility and independence: Phase transitions in the majority-rule model
• Voter models with contrarian agents
• Collective dynamics of heterogeneously and nonlinearly coupled phase oscillators
• Trust in the CODA model: Opinion Dynamics and the reliability of other agents
• The influence of contrarians in the dynamics of opinion formation
• Phase transition in kinetic exchange opinion models with independence
• Opinion dynamics as a movement in a bistable potential
• Social Conformity Despite Individual Preferences for Distinctiveness
• Adaptive coupling induced multi-stable states in complex networks
• Bifurcations in models of a society of reasonable contrarians and conformists
• Opinion dynamics on directed small-world networks
• Phase transition in a coevolving network of conformist and contrarian voters
• Dynamics of Kuramoto oscillators with time-delayed positive and negative couplings
• Complex dynamics of a nonlinear voter model with contrarian agents
• Symmetry breaking by heating in a continuous opinion model
• Phase transitions and universality in the Sznajd model with anticonformity
• From Microscopic Heterogeneity to Macroscopic Complexity in the Contrarian Voter Model
• Consequences of nonconformist behaviors in a continuous opinion model
• Noise and disorder: phase transitions and universality in a model of opinion formation
• Contrarian Voter Model under the influence of an Oscillating Propaganda: Consensus, Bimodal behavior and Stochastic Resonance
• Contrarian effects and echo chamber formation in opinion dynamics
• A simple mechanism leading to first-order phase transitions in a model of tax evasion
• How to Introduce Temperature to the 1 Dimensional Sznajd Model
• Opinion dynamics involving contrarian and independence behaviors based on the Sznajd model with two-two and three-one agent interactions
• Stochastic Bifurcations in the Nonlinear Parallel Ising Model
• A New (aleph) Stochastic Quenched Disorder Model for Interaction of Network- Master node
• Effects of Janus Oscillators in the Kuramoto Model with Positive and Negative Couplings
• Universality of noise-induced transitions in nonlinear voter models
• Non-Equilibrium Phase Transitions Induced by Social Temperature in Kinetic Exchange Opinion Models on Regular Lattices
• Rationalizing systematic discrepancies between election outcomes and opinion polls
• When Does Population Diversity Matter? A Unified Framework for Binary-Choice Dynamics