Barriers to cooperation aid ideological rigidity and threaten societal collapse.

Understanding the factors that promote, disrupt, or shape the nature of cooperation is one of the main tasks of evolutionary biology. Here, we focus on attitudes and beliefs supportive of in-group favoritism and strict adherence to moral consensus, collectively known as ideological rigidity, that ha...

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Main Authors: Marko Jusup, Tadasu Matsuo, Yoh Iwasa
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-05-01
Series:PLoS Computational Biology
Online Access:http://europepmc.org/articles/PMC4014399?pdf=render
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author Marko Jusup
Tadasu Matsuo
Yoh Iwasa
author_facet Marko Jusup
Tadasu Matsuo
Yoh Iwasa
author_sort Marko Jusup
collection DOAJ
description Understanding the factors that promote, disrupt, or shape the nature of cooperation is one of the main tasks of evolutionary biology. Here, we focus on attitudes and beliefs supportive of in-group favoritism and strict adherence to moral consensus, collectively known as ideological rigidity, that have been linked with both ends of the political spectrum. The presence among the political right and the left is likely to make ideological rigidity a major determinant of the political discourse with an important social function. To better understand this function, we equip the indirect reciprocity framework--widely used to explain evaluation-mediated social cooperation--with multiple stylized value systems, each corresponding to the different degree of ideological rigidity. By running game theoretical simulations, we observe the competitive evolution of these systems, map conditions that lead to more ideologically rigid societies, and identify potentially disastrous outcomes. In particular, we uncover that barriers to cooperation aid ideological rigidity. The society may even polarize to the extent where social parasites overrun the population and cause the complete collapse of the social structure. These results have implications for lawmakers globally, warning against restrictive or protectionist policies.
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spelling doaj.art-41eef40b72e444c4b803d7a34757b8762022-12-22T00:31:30ZengPublic Library of Science (PLoS)PLoS Computational Biology1553-734X1553-73582014-05-01105e100361810.1371/journal.pcbi.1003618Barriers to cooperation aid ideological rigidity and threaten societal collapse.Marko JusupTadasu MatsuoYoh IwasaUnderstanding the factors that promote, disrupt, or shape the nature of cooperation is one of the main tasks of evolutionary biology. Here, we focus on attitudes and beliefs supportive of in-group favoritism and strict adherence to moral consensus, collectively known as ideological rigidity, that have been linked with both ends of the political spectrum. The presence among the political right and the left is likely to make ideological rigidity a major determinant of the political discourse with an important social function. To better understand this function, we equip the indirect reciprocity framework--widely used to explain evaluation-mediated social cooperation--with multiple stylized value systems, each corresponding to the different degree of ideological rigidity. By running game theoretical simulations, we observe the competitive evolution of these systems, map conditions that lead to more ideologically rigid societies, and identify potentially disastrous outcomes. In particular, we uncover that barriers to cooperation aid ideological rigidity. The society may even polarize to the extent where social parasites overrun the population and cause the complete collapse of the social structure. These results have implications for lawmakers globally, warning against restrictive or protectionist policies.http://europepmc.org/articles/PMC4014399?pdf=render
spellingShingle Marko Jusup
Tadasu Matsuo
Yoh Iwasa
Barriers to cooperation aid ideological rigidity and threaten societal collapse.
PLoS Computational Biology
title Barriers to cooperation aid ideological rigidity and threaten societal collapse.
title_full Barriers to cooperation aid ideological rigidity and threaten societal collapse.
title_fullStr Barriers to cooperation aid ideological rigidity and threaten societal collapse.
title_full_unstemmed Barriers to cooperation aid ideological rigidity and threaten societal collapse.
title_short Barriers to cooperation aid ideological rigidity and threaten societal collapse.
title_sort barriers to cooperation aid ideological rigidity and threaten societal collapse
url http://europepmc.org/articles/PMC4014399?pdf=render
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