Opinion formation on dynamic networks: identifying conditions for the emergence of partisan echo chambers

Modern political interaction is characterized by strong partisanship and a lack of interest in information sharing and agreement across party lines. It remains largely unclear how such partisan echo chambers arise and how they coevolve with opinion formation. Here, we explore the emergence of these...

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Main Authors: Tucker Evans, Feng Fu
Format: Article
Language:English
Published: The Royal Society 2018-01-01
Series:Royal Society Open Science
Subjects:
Online Access:https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.181122
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author Tucker Evans
Feng Fu
author_facet Tucker Evans
Feng Fu
author_sort Tucker Evans
collection DOAJ
description Modern political interaction is characterized by strong partisanship and a lack of interest in information sharing and agreement across party lines. It remains largely unclear how such partisan echo chambers arise and how they coevolve with opinion formation. Here, we explore the emergence of these structures through the lens of coevolutionary games. In our model, the payoff of an individual is determined jointly by the magnitude of their opinion, their degree of conformity with their social neighbours and the benefit of having social connections. Each individual can simultaneously adjust their opinion and the weights of their social connections. We present and validate the conditions for the emergence of partisan echo chambers, characterizing the transition from cohesive communities with a consensus to divisive networks with splitting opinions. Moreover, we apply our model to voting records of the US House of Representatives over a timespan of decades to understand the influence of underlying psychological and social factors on increasing partisanship in recent years. Our work helps elucidate how the division of today has come to be and how cohesion and unity could otherwise be attained on a variety of political and social issues.
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spelling doaj.art-dd0b9dde35f24401b9be2a52edb82b2a2022-12-22T02:51:15ZengThe Royal SocietyRoyal Society Open Science2054-57032018-01-0151010.1098/rsos.181122181122Opinion formation on dynamic networks: identifying conditions for the emergence of partisan echo chambersTucker EvansFeng FuModern political interaction is characterized by strong partisanship and a lack of interest in information sharing and agreement across party lines. It remains largely unclear how such partisan echo chambers arise and how they coevolve with opinion formation. Here, we explore the emergence of these structures through the lens of coevolutionary games. In our model, the payoff of an individual is determined jointly by the magnitude of their opinion, their degree of conformity with their social neighbours and the benefit of having social connections. Each individual can simultaneously adjust their opinion and the weights of their social connections. We present and validate the conditions for the emergence of partisan echo chambers, characterizing the transition from cohesive communities with a consensus to divisive networks with splitting opinions. Moreover, we apply our model to voting records of the US House of Representatives over a timespan of decades to understand the influence of underlying psychological and social factors on increasing partisanship in recent years. Our work helps elucidate how the division of today has come to be and how cohesion and unity could otherwise be attained on a variety of political and social issues.https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.181122polarizationconsensussocial dynamics
spellingShingle Tucker Evans
Feng Fu
Opinion formation on dynamic networks: identifying conditions for the emergence of partisan echo chambers
Royal Society Open Science
polarization
consensus
social dynamics
title Opinion formation on dynamic networks: identifying conditions for the emergence of partisan echo chambers
title_full Opinion formation on dynamic networks: identifying conditions for the emergence of partisan echo chambers
title_fullStr Opinion formation on dynamic networks: identifying conditions for the emergence of partisan echo chambers
title_full_unstemmed Opinion formation on dynamic networks: identifying conditions for the emergence of partisan echo chambers
title_short Opinion formation on dynamic networks: identifying conditions for the emergence of partisan echo chambers
title_sort opinion formation on dynamic networks identifying conditions for the emergence of partisan echo chambers
topic polarization
consensus
social dynamics
url https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.181122
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