Synchronising institutions and value systems: A model of opinion dynamics mediated by proportional representation.

Individuals increasingly participate in online platforms where they copy, share and form they opinions. Social interactions in these platforms are mediated by digital institutions, which dictate algorithms that in turn affect how users form and evolve their opinions. In this work, we examine the con...

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Autores principales:	Jose Segovia-Martin, Monica Tamariz
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/95129cdb1d12476395048a12e6f8fef1
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spelling	oai:doaj.org-article:95129cdb1d12476395048a12e6f8fef12021-12-02T20:14:06ZSynchronising institutions and value systems: A model of opinion dynamics mediated by proportional representation.1932-620310.1371/journal.pone.0257525https://doaj.org/article/95129cdb1d12476395048a12e6f8fef12021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0257525https://doaj.org/toc/1932-6203Individuals increasingly participate in online platforms where they copy, share and form they opinions. Social interactions in these platforms are mediated by digital institutions, which dictate algorithms that in turn affect how users form and evolve their opinions. In this work, we examine the conditions under which convergence on shared opinions can be obtained in a social network where connected agents repeatedly update their normalised cardinal preferences (i.e. value systems) under the influence of a non-constant reflexive signal (i.e. institution) that aggregates populations' information using a proportional representation rule. We analyse the impact of institutions that aggregate (i) expressed opinions (i.e. opinion-aggregation institutions), and (ii) cardinal preferences (i.e. value-aggregation institutions). We find that, in certain regions of the parameter space, moderate institutional influence can lead to moderate consensus and strong institutional influence can lead to polarisation. In our randomised network, local coordination alone in the total absence of institutions does not lead to convergence on shared opinions, but very low levels of institutional influence are sufficient to generate a feedback loop that favours global conventions. We also show that opinion-aggregation may act as a catalyst for value change and convergence. When applied to digital institutions, we show that the best mechanism to avoid extremism is to increase the initial diversity of the value systems in the population.Jose Segovia-MartinMonica TamarizPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 9, p e0257525 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jose Segovia-Martin Monica Tamariz Synchronising institutions and value systems: A model of opinion dynamics mediated by proportional representation.
description	Individuals increasingly participate in online platforms where they copy, share and form they opinions. Social interactions in these platforms are mediated by digital institutions, which dictate algorithms that in turn affect how users form and evolve their opinions. In this work, we examine the conditions under which convergence on shared opinions can be obtained in a social network where connected agents repeatedly update their normalised cardinal preferences (i.e. value systems) under the influence of a non-constant reflexive signal (i.e. institution) that aggregates populations' information using a proportional representation rule. We analyse the impact of institutions that aggregate (i) expressed opinions (i.e. opinion-aggregation institutions), and (ii) cardinal preferences (i.e. value-aggregation institutions). We find that, in certain regions of the parameter space, moderate institutional influence can lead to moderate consensus and strong institutional influence can lead to polarisation. In our randomised network, local coordination alone in the total absence of institutions does not lead to convergence on shared opinions, but very low levels of institutional influence are sufficient to generate a feedback loop that favours global conventions. We also show that opinion-aggregation may act as a catalyst for value change and convergence. When applied to digital institutions, we show that the best mechanism to avoid extremism is to increase the initial diversity of the value systems in the population.
format	article
author	Jose Segovia-Martin Monica Tamariz
author_facet	Jose Segovia-Martin Monica Tamariz
author_sort	Jose Segovia-Martin
title	Synchronising institutions and value systems: A model of opinion dynamics mediated by proportional representation.
title_short	Synchronising institutions and value systems: A model of opinion dynamics mediated by proportional representation.
title_full	Synchronising institutions and value systems: A model of opinion dynamics mediated by proportional representation.
title_fullStr	Synchronising institutions and value systems: A model of opinion dynamics mediated by proportional representation.
title_full_unstemmed	Synchronising institutions and value systems: A model of opinion dynamics mediated by proportional representation.
title_sort	synchronising institutions and value systems: a model of opinion dynamics mediated by proportional representation.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/95129cdb1d12476395048a12e6f8fef1
work_keys_str_mv	AT josesegoviamartin synchronisinginstitutionsandvaluesystemsamodelofopiniondynamicsmediatedbyproportionalrepresentation AT monicatamariz synchronisinginstitutionsandvaluesystemsamodelofopiniondynamicsmediatedbyproportionalrepresentation
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Synchronising institutions and value systems: A model of opinion dynamics mediated by proportional representation.

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