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Opinion dynamics: kinetic modelling with mass media, application to the Scottish independence referendum

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Date
2016
Dewey
Analyse
Sujet
Opinion formation; Mass media; Kinetic equations
Journal issue
Physica A: Statistical Mechanics and its Applications
Volume
444
Publication date
02-2016
Article pages
448-457
Publisher
Elsevier
DOI
http://dx.doi.org/10.1016/j.physa.2015.10.014
URI
https://basepub.dauphine.fr/handle/123456789/17269
Collections
  • CEREMADE : Publications
Metadata
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Author
Boudin, Laurent
25 Laboratoire Jacques-Louis Lions [LJLL]
Salvarani, Francesco
60 CEntre de REcherches en MAthématiques de la DEcision [CEREMADE]
30138 Dipartimento di matematica F. Casorati
Type
Article accepté pour publication ou publié
Abstract (EN)
We consider a kinetic model describing some mechanisms of opinion formation in the framework of referendums, by allowing that the individuals, who can interact between themselves and modify their opinion by means of spontaneous self-thinking, are moreover under the influence of mass media. After proving the main properties of the model, such as existence of solutions and conservation properties, we study, at the numerical level, both the transient and the asymptotic regimes. In particular, we point out that a plurality of media, with different orien-tations, is a key ingredient to allow pluralism and prevent consensus. The forecasts of the model are compared to some polls related to the Scottish independence referendum of 2014.

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