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Opinion dynamics on interacting networks: media competition and social influence

Quattrociocchi, Walter and Caldarelli, Guido and Scala, Antonio Opinion dynamics on interacting networks: media competition and social influence. Scientific Reports, 4. pp. 1-7. ISSN 2045-2322 (2014)

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The inner dynamics of the multiple actors of the informations systems – i.e, T.V., newspapers, blogs, social network platforms, – play a fundamental role on the evolution of the public opinion. Coherently with the recent history of the information system (from few main stream media to the massive diffusion of socio-technical system), in this work we investigate how main stream media signed interaction might shape the opinion space. In particular we focus on how different size (in the number of media) and interaction patterns of the information system may affect collective debates and thus the opinions' distribution. We introduce a sophisticated computational model of opinion dynamics which accounts for the coexistence of media and gossip as separated mechanisms and for their feedback loops. The model accounts also for the effect of the media communication patterns by considering both the simple case where each medium mimics the behavior of the most successful one (to maximize the audience) and the case where there is polarization and thus competition among media memes. We show that plurality and competition within information sources lead to stable configurations where several and distant cultures coexist.

Item Type: Article
Identification Number: 10.1038/srep04938
Uncontrolled Keywords: Complex networks; Statistical physics
Subjects: H Social Sciences > HB Economic Theory
H Social Sciences > HM Sociology
Research Area: Economics and Institutional Change
Depositing User: Ms T. Iannizzi
Date Deposited: 03 Jun 2014 12:50
Last Modified: 03 Jun 2014 12:50
URI: http://eprints.imtlucca.it/id/eprint/2198

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