eprintid: 47940 rev_number: 4 eprint_status: archive userid: 1482 importid: 105 dir: disk0/00/04/79/40 datestamp: 2023-07-20 08:37:43 lastmod: 2023-07-20 08:37:43 status_changed: 2023-07-20 08:37:43 type: monograph metadata_visibility: show creators_name: Deffuant, Guillaume creators_name: Keijzer, Marijn creators_name: Banisch, Sven creators_idrefppn: 260985708 creators_halaffid: 506116 title: Regular access to constantly renewed online content favors radicalization of opinions ispublished: pub subjects: subjects_ECO abstract: Worry over polarization has grown alongside the digital information consump-tion revolution. Where most scientific work considered user-generated and user-disseminated (i.e., Web 2.0) content as the culprit, the potential of purely increased access to informa-tion (or Web 1.0) has been largely overlooked. Here, we suggest that the shift to Web 1.0 alone could include a powerful mechanism of belief extremization. We study an empiri-cally calibrated persuasive argument model with confirmation bias. We compare an offline setting—in which a limited number of arguments is broadcast by traditional media—with an online setting—in which the agent can choose to watch contents within a very wide set of possibilities. In both cases, we assume that positive and negative arguments are balanced. The simulations show that the online setting leads to significantly more extreme opinions and amplifies initial prejudice. date: 2023-06 date_type: published publisher: IAST Working Paper official_url: http://iast.fr/pub/128134 faculty: tse divisions: tse keywords: Opinion dynamics keywords: Online media keywords: Confirmation bias keywords: Web 1.0 keywords: Biased processing language: en has_fulltext: TRUE view_date_year: 2023 full_text_status: public monograph_type: working_paper series: IAST Working Paper volume: 23-154 book_title: IAST Working Paper oai_identifier: oai:tse-fr.eu:128134 harvester_local_overwrite: creators_idrefppn harvester_local_overwrite: creators_halaffid harvester_local_overwrite: pending oai_lastmod: 2023-06-05T13:07:05Z oai_set: tse site: ut1 citation: Deffuant, Guillaume, Keijzer, Marijn and Banisch, Sven (2023) Regular access to constantly renewed online content favors radicalization of opinions. IAST Working Paper, n. 23-154 document_url: https://publications.ut-capitole.fr/id/eprint/47940/1/wp_iast_154.pdf