The effect of survival pressure-based defector reward behavior on cooperation in spatial prisoner's dilemma games.

Research has shown that rewarding behavior can greatly facilitate the occurrence of cooperation in social dilemmas. Yet rewards entail costs, making the reward itself an altruistic behavior. The reasons for adopting rewarding behaviors then become an interesting matter, so we propose a game model in...

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Main Authors: Xuechao Zhang, Shichang Lu
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2024-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0311612
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author Xuechao Zhang
Shichang Lu
author_facet Xuechao Zhang
Shichang Lu
author_sort Xuechao Zhang
collection DOAJ
description Research has shown that rewarding behavior can greatly facilitate the occurrence of cooperation in social dilemmas. Yet rewards entail costs, making the reward itself an altruistic behavior. The reasons for adopting rewarding behaviors then become an interesting matter, so we propose a game model in which defectors are pressured by survival to adopt rewarding behaviors. Research suggests that defector reward strategies can be used as a transition strategy for defectors to alleviate survival stress and promote cooperation in the spatial prisoner's dilemma. A small survival pressure threshold will make it altogether easier for defectors to adopt a strategy that rewards defection and thus tempts the emergence of cooperators in their neighborhood. In addition, the effect of the payment cost α and the reward amount β of the rewarding behavior on the evolution of the system will be limited by the temptation b of the defector, and the effect of each parameter on the promotion of cooperation in the system is not linear. That is, when α is fixed, b and β can still optimize the level of cooperation in a given combination. The same holds for α and β when b is fixed.
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spelling doaj-art-5d748ed86831433780bfd4d2eeac71362024-11-23T05:30:57ZengPublic Library of Science (PLoS)PLoS ONE1932-62032024-01-011911e031161210.1371/journal.pone.0311612The effect of survival pressure-based defector reward behavior on cooperation in spatial prisoner's dilemma games.Xuechao ZhangShichang LuResearch has shown that rewarding behavior can greatly facilitate the occurrence of cooperation in social dilemmas. Yet rewards entail costs, making the reward itself an altruistic behavior. The reasons for adopting rewarding behaviors then become an interesting matter, so we propose a game model in which defectors are pressured by survival to adopt rewarding behaviors. Research suggests that defector reward strategies can be used as a transition strategy for defectors to alleviate survival stress and promote cooperation in the spatial prisoner's dilemma. A small survival pressure threshold will make it altogether easier for defectors to adopt a strategy that rewards defection and thus tempts the emergence of cooperators in their neighborhood. In addition, the effect of the payment cost α and the reward amount β of the rewarding behavior on the evolution of the system will be limited by the temptation b of the defector, and the effect of each parameter on the promotion of cooperation in the system is not linear. That is, when α is fixed, b and β can still optimize the level of cooperation in a given combination. The same holds for α and β when b is fixed.https://doi.org/10.1371/journal.pone.0311612
spellingShingle Xuechao Zhang
Shichang Lu
The effect of survival pressure-based defector reward behavior on cooperation in spatial prisoner's dilemma games.
PLoS ONE
title The effect of survival pressure-based defector reward behavior on cooperation in spatial prisoner's dilemma games.
title_full The effect of survival pressure-based defector reward behavior on cooperation in spatial prisoner's dilemma games.
title_fullStr The effect of survival pressure-based defector reward behavior on cooperation in spatial prisoner's dilemma games.
title_full_unstemmed The effect of survival pressure-based defector reward behavior on cooperation in spatial prisoner's dilemma games.
title_short The effect of survival pressure-based defector reward behavior on cooperation in spatial prisoner's dilemma games.
title_sort effect of survival pressure based defector reward behavior on cooperation in spatial prisoner s dilemma games
url https://doi.org/10.1371/journal.pone.0311612
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