Impact of aging on the evolution of cooperation in the spatial prisoner's dilemma game
Impact of aging on the evolution of cooperation in the spatial prisoner's dilemma game
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DOI：
10.1103/physreve.80.021901
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发表时间：
2009-08-01
影响因子：
2.4
通讯作者：
Stark, Hans-Ulrich
中科院分区：
文献类型：
--
作者：
Szolnoki, Attila;Perc, Matjaz;Stark, Hans-Ulrich
衰老总是存在的，调整我们与他人的互动，并假设我们能够锻炼他们的有限寿命。我们认为，囚犯的困境游戏在一个正方形的格子和研究如何淬火的年龄分布和不同的老化协议的影响时，考虑到随着时间的推移的生活经验和知识积累的合作的演变。与以前的研究一致，我们发现，淬火分配的年龄的球员，引入异质性的游戏，大大促进合作行为。引入衰老和随后的死亡作为一个共同进化过程可能会对合作产生不利影响，但如果成功通过其策略的个体的后代被认为是新生儿，则会有效地增强合作。我们研究由此产生的年龄分布的球员，并表明异质性是至关重要的，但inconvenient-for解释所观察到的差异，在空间网格上的合作者丰度。合作水平的意外增加可以解释的动力学效应，具有高度选择性的影响，合作者和叛逃者状态的传播。
Aging is always present, tailoring our interactions with others, and postulating a finite lifespan during which we are able to exercise them. We consider the prisoner's dilemma game on a square lattice and examine how quenched age distributions and different aging protocols influence the evolution of cooperation when taking the life experience and knowledge accumulation into account as time passes. In agreement with previous studies, we find that a quenched assignment of age to players, introducing heterogeneity to the game, substantially promotes cooperative behavior. Introduction of aging and subsequent death as a coevolutionary process may act detrimental on cooperation but enhances it efficiently if the offspring of individuals that have successfully passed their strategy is considered newborn. We study resulting age distributions of players and show that the heterogeneity is vital-yet insufficient-for explaining the observed differences in cooperator abundance on the spatial grid. The unexpected increment of cooperation levels can be explained by a dynamical effect that has a highly selective impact on the propagation of cooperator and defector states.