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The strength of dynamic ties: The ability to alter some ties promotes cooperation in those that cannot be altered

Dynamic networks, where ties can be shed and new ties can be formed, promote the evolution of cooperation. Yet, past research has only compared networks where all ties can be severed to those where none can, confounding the benefits of fully dynamic networks with the presence of some dynamic ties wi...

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Detalles Bibliográficos
Autores principales: Harrell, Ashley, Melamed, David, Simpson, Brent
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6281432/
https://www.ncbi.nlm.nih.gov/pubmed/30525106
http://dx.doi.org/10.1126/sciadv.aau9109
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author Harrell, Ashley
Melamed, David
Simpson, Brent
author_facet Harrell, Ashley
Melamed, David
Simpson, Brent
author_sort Harrell, Ashley
collection PubMed
description Dynamic networks, where ties can be shed and new ties can be formed, promote the evolution of cooperation. Yet, past research has only compared networks where all ties can be severed to those where none can, confounding the benefits of fully dynamic networks with the presence of some dynamic ties within the network. Further, humans do not live in fully dynamic networks. Instead, in real-world networks, some ties are subject to change, while others are difficult to sever. Here, we consider whether and how cooperation evolves in networks containing both static and dynamic ties. We argue and find that the presence of dynamic ties in networks promotes cooperation even in static ties. Consistent with previous work demonstrating that cooperation cascades in networks, our results show that cooperation is enhanced in networks with both tie types because the higher rate of cooperation that occurs following the dynamics process “spills over” to those relations that are more difficult to alter. Thus, our findings demonstrate the critical role that dynamic ties play in promoting cooperation by altering behavioral outcomes even in non-dynamic relations.
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spelling pubmed-62814322018-12-06 The strength of dynamic ties: The ability to alter some ties promotes cooperation in those that cannot be altered Harrell, Ashley Melamed, David Simpson, Brent Sci Adv Research Articles Dynamic networks, where ties can be shed and new ties can be formed, promote the evolution of cooperation. Yet, past research has only compared networks where all ties can be severed to those where none can, confounding the benefits of fully dynamic networks with the presence of some dynamic ties within the network. Further, humans do not live in fully dynamic networks. Instead, in real-world networks, some ties are subject to change, while others are difficult to sever. Here, we consider whether and how cooperation evolves in networks containing both static and dynamic ties. We argue and find that the presence of dynamic ties in networks promotes cooperation even in static ties. Consistent with previous work demonstrating that cooperation cascades in networks, our results show that cooperation is enhanced in networks with both tie types because the higher rate of cooperation that occurs following the dynamics process “spills over” to those relations that are more difficult to alter. Thus, our findings demonstrate the critical role that dynamic ties play in promoting cooperation by altering behavioral outcomes even in non-dynamic relations. American Association for the Advancement of Science 2018-12-05 /pmc/articles/PMC6281432/ /pubmed/30525106 http://dx.doi.org/10.1126/sciadv.aau9109 Text en Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
spellingShingle Research Articles
Harrell, Ashley
Melamed, David
Simpson, Brent
The strength of dynamic ties: The ability to alter some ties promotes cooperation in those that cannot be altered
title The strength of dynamic ties: The ability to alter some ties promotes cooperation in those that cannot be altered
title_full The strength of dynamic ties: The ability to alter some ties promotes cooperation in those that cannot be altered
title_fullStr The strength of dynamic ties: The ability to alter some ties promotes cooperation in those that cannot be altered
title_full_unstemmed The strength of dynamic ties: The ability to alter some ties promotes cooperation in those that cannot be altered
title_short The strength of dynamic ties: The ability to alter some ties promotes cooperation in those that cannot be altered
title_sort strength of dynamic ties: the ability to alter some ties promotes cooperation in those that cannot be altered
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6281432/
https://www.ncbi.nlm.nih.gov/pubmed/30525106
http://dx.doi.org/10.1126/sciadv.aau9109
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