Opinion evolution in the presence of constant propaganda: homogeneous and localized cases

The opinion evolution of a group of agents arranged in a square lattice in the presence of external constant propaganda is studied. The contagion between agents is modeled according to the voter model, but the effect of external propaganda and a social temperature is also considered. At a first stag...

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Bibliographic Details
Published inThe European physical journal. B, Condensed matter physics Vol. 94; no. 1
Main Authors Gimenez, María Cecilia, Reinaudi, Luis, Paz-García, Ana Pamela, Centres, Paulo Marcelo, Ramirez-Pastor, Antonio José
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 2021
Springer
Springer Nature B.V
Subjects
Analysis
Complex Systems
Condensed Matter Physics
Evolution
Fluid- and Aerodynamics
Physics
Physics and Astronomy
Propaganda
Regular Article - Statistical and Nonlinear Physics
Solid State Physics
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Summary:The opinion evolution of a group of agents arranged in a square lattice in the presence of external constant propaganda is studied. The contagion between agents is modeled according to the voter model, but the effect of external propaganda and a social temperature is also considered. At a first stage, the influence of the contagion probability, the temperature, and the value of the propaganda are analyzed for a homogeneous application of this last parameter. An analytical expression was found for the stationary state in some cases. Also, the effect of the spatial location of the propaganda is analyzed, where it is applied only to a subset of agents. The random distribution of agents affected by the propaganda was found to be the most effective, while for the case of distribution in patches and stripes, it depends on their size. Graphic abstract
ISSN:1434-6028
1434-6036
DOI:10.1140/epjb/s10051-021-00047-5