Opinion formation and targeting when persuaders have extreme and centrist opinions
Agnieszka Rusinowska () and
Akylai Taalaibekova ()
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Agnieszka Rusinowska: CES - Centre d'économie de la Sorbonne - UP1 - Université Panthéon-Sorbonne - CNRS - Centre National de la Recherche Scientifique, PSE - Paris School of Economics
Akylai Taalaibekova: CORE - Center of Operation Research and Econometrics [Louvain] - UCL - Université Catholique de Louvain, CES - Centre d'économie de la Sorbonne - UP1 - Université Panthéon-Sorbonne - CNRS - Centre National de la Recherche Scientifique
Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) from HAL
We consider a model of competitive opinion formation in which three persuaders characterized by (possibly unequal) persuasion impacts try to influence opinions in a society of individuals embedded in a social network. Two of the persuaders have the extreme and opposite opinions, and the third one has the centrist opinion. Each persuader chooses one individual to target, i.e., he forms a link with the chosen individual in order to spread his own "point of view" in the society and to get the average long run opinion as close as possible to his own opinion. We examine the opinion convergence and consensus reaching in the society. We study the existence and characterization of pure strategy Nash equilibria in the game played by the persuaders with equal impacts. This characterization depends on influenceability and centrality (intermediacy) of the targets. We discuss the effect of the centrist persuader on the consensus and symmetric equilibria, compared to the framework with only two persuaders having the extreme opinions. When the persuasion impacts are unequal with one persuader having a sufficiently large impact, the game has only equilibria in mixed strategies.
Keywords: social network; opinion formation; targeting; extreme and centrist persuaders; réseau social; formation d'opinion; consensus; ciblage; lobbying (search for similar items in EconPapers)
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Published in 2018
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Persistent link: https://EconPapers.repec.org/RePEc:hal:cesptp:halshs-01720017
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