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Abstract:

The effects of interpersonal interactions on individual's agreements result in a social aggregation process which is reflected in the formation of collective states, as for instance, groups of individuals with a similar opinion about a given issue. This field, which has been a longstanding concern of sociologists and psychologists, has been extended into an area of experimental social psychology, and even has attracted the attention of physicists and mathematicians. In this article, we present a novel model of opinion formation in which agents may either have a strict preference for a choice, or be undecided. The opinion shift emerges, in a threshold process, as a consequence of a cumulative persuasion for either one of the two opinions in repeated interactions. There are two main ingredients which play key roles in determining the steady states: the initial fraction of undecided agents and the change in agents' persuasion after each interaction. As a function of these two parameters, the model presents a wide range of solutions, among which there are consensus of each opinion and bi-polarization. We found that a minimum fraction of undecided agents is not crucial for reaching consensus only, but also to determine a dominant opinion in a polarized situation. In order to gain a deeper comprehension of the dynamics, we also present the theoretical framework of the model. The master equations are of special interest for their nontrivial properties and difficulties in being solved analytically. © 2015 Balenzuela et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Registro:

Documento: Artículo
Título:The undecided have the key: Interaction-driven opinion dynamics in a three state model
Autor:Balenzuela, P.; Pinasco, J.P.; Semeshenko, V.
Filiación:Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, IFIBA, CONICET, Buenos Aires, Argentina
Departamento de Matemática, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, IMAS, UBA-CONICET, Buenos Aires, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
Instituto Interdisciplinario de Economía Política de Buenos Aires (IIEP-BAIRES), Facultad de Ciencias Económicas, Universidad de Buenos Aires, Buenos Aires, Argentina
Palabras clave:comprehension; conceptual framework; consensus; consensus development; human; human experiment; model; persuasive communication; polarization; steady state; decision making; group process; human relation; peer pressure; psychological model; Decision Making; Group Processes; Humans; Interpersonal Relations; Models, Psychological; Peer Influence; Persuasive Communication
Año:2015
Volumen:10
Número:10
DOI: http://dx.doi.org/10.1371/journal.pone.0139572
Título revista:PLoS ONE
Título revista abreviado:PLoS ONE
ISSN:19326203
CODEN:POLNC
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19326203_v10_n10_p_Balenzuela

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Citas:

---------- APA ----------
Balenzuela, P., Pinasco, J.P. & Semeshenko, V. (2015) . The undecided have the key: Interaction-driven opinion dynamics in a three state model. PLoS ONE, 10(10).
http://dx.doi.org/10.1371/journal.pone.0139572
---------- CHICAGO ----------
Balenzuela, P., Pinasco, J.P., Semeshenko, V. "The undecided have the key: Interaction-driven opinion dynamics in a three state model" . PLoS ONE 10, no. 10 (2015).
http://dx.doi.org/10.1371/journal.pone.0139572
---------- MLA ----------
Balenzuela, P., Pinasco, J.P., Semeshenko, V. "The undecided have the key: Interaction-driven opinion dynamics in a three state model" . PLoS ONE, vol. 10, no. 10, 2015.
http://dx.doi.org/10.1371/journal.pone.0139572
---------- VANCOUVER ----------
Balenzuela, P., Pinasco, J.P., Semeshenko, V. The undecided have the key: Interaction-driven opinion dynamics in a three state model. PLoS ONE. 2015;10(10).
http://dx.doi.org/10.1371/journal.pone.0139572