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Local Wealth Redistribution Promotes Cooperation in Multiagent Systems


Abstract Designing mechanisms that leverage cooperation between agents has been a long-lasting goal in Multiagent Systems. The task is especially challenging when agents are selfish, lack common goals and face social dilemmas, i.e., situations in which individual interest conflicts with social welfare. Past works explored mechanisms that explain cooperation in biological and social systems, providing important clues for the aim of designing cooperative artificial societies. In particular, several works show that cooperation is able to emerge when specific network structures underlie agents’ interactions. Notwithstanding, social dilemmas in which defection is highly tempting still pose challenges concerning the e effective sustainability of cooperation. Here we propose a new redistribution mechanism that can be applied in structured populations of agents. Importantly, we show that, when implemented locally (i.e., agents share a fraction of their wealth surplus with their nearest neighbors), redistribution excels in promoting cooperation under regimes where, before, only defection prevailed.
Year 2018
Keywords Game Theory;Multi-Agent Societies;
Authors Flávio L. Pinheiro, Fernando P. Santos
Booktitle Proc. of the 17th International Conference on Autonomous Agents and Multiagent Systems (AAMAS 2018)
Publisher IFAAMAS
Pdf File
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@inproceedings { pinheiro18, abstract = {Designing mechanisms that leverage cooperation between agents has been a long-lasting goal in Multiagent Systems. The task is especially challenging when agents are selfish, lack common goals and face social dilemmas, i.e., situations in which individual interest conflicts with social welfare. Past works explored mechanisms that explain cooperation in biological and social systems, providing important clues for the aim of designing cooperative artificial societies. In particular, several works show that cooperation is able to emerge when specific network structures underlie agents’ interactions. Notwithstanding, social dilemmas in which defection is highly tempting still pose challenges concerning the e effective sustainability of cooperation. Here we propose a new redistribution mechanism that can be applied in structured populations of agents. Importantly, we show that, when implemented locally (i.e., agents share a fraction of their wealth surplus with their nearest neighbors), redistribution excels in promoting cooperation under regimes where, before, only defection prevailed.}, booktitle = {Proc. of the 17th International Conference on Autonomous Agents and Multiagent Systems (AAMAS 2018)}, keywords = {Game Theory;Multi-Agent Societies;}, publisher = {IFAAMAS}, title = {Local Wealth Redistribution Promotes Cooperation in Multiagent Systems}, year = {2018}, author = {Flávio L. Pinheiro and Fernando P. Santos} }

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