The public goods game is a famous example illustrating the tragedy of the commons (Hardin in Science 162:1243-1248, 1968). In this game cooperating individuals contribute to a pool, which in turn is distributed to all members of the group, including defectors who reap the same rewards as cooperators without having made a contribution before. The question is now, how to incentivize group members to all cooperate as it maximizes the common good. While costly punishment (Helbing et al. in New J Phys 12:083005, 2010) presents one such method, the cost of punishment still reduces the common good. The selfishness of the group members favors defectors. Here we show that including other members of the groups and sharing rewards with them can be another incentive for cooperation, avoiding the cost required for punishment. Further, we show how punishment and this form of inclusiveness interact. This work suggests that a redistribution similar to a basic income that is coupled to the economic success of the entire group could overcome the tragedy of the commons.
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http://dx.doi.org/10.1038/s41598-020-79731-y | DOI Listing |
BMC Gastroenterol
January 2025
Department of Public Health, College of Medicine and Health Sciences, Dire Dawa University, Dire Dawa, Ethiopia.
Background: Liver diseases are a public health problem in developing regions, and the majority of them are asymptomatic. Evidence on the current burden of liver disease and associated context-specific risk factors is scarce in the study area, where various risk factors for liver disease, including khat chewing, smoking, and aflatoxin exposure, are common. This study was to assess the magnitude, patterns, and factors associated with liver disease among patients visiting governmental hospitals in eastern Ethiopia.
View Article and Find Full Text PDFDementia (London)
January 2025
Department of Psychology, University of Wisconsin Oshkosh, Oshkosh, WI, USA.
Dementia and the associated stigma pose unique threats to the identity of persons with dementia, triggering attempts to cope with resulting identity changes. We explore identity change narratives and metaphors written by people with dementia and care partners in public blog posts. These metaphors reflect bloggers' motivation to adapt, adjust, and cope with identity change and their motives to challenge common misunderstandings of dementia as a complete loss of selfhood.
View Article and Find Full Text PDFMath Biosci Eng
November 2024
Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, São Carlos 13560-970, SP, Brazil.
In deciding whether to contribute to a public good, people often face a social dilemma known as the tragedy of the commons: either bear the cost of promoting the collective welfare, or free-ride on the efforts of others. Here, we study the dynamics of cooperation in the context of the threshold public goods games, in which groups must reach a cumulative target contribution to prevent a potential disaster, such as an environmental crisis or social unrest, that could result in the loss of all private wealth. The catch is that the crisis may never materialize, and the investment in the public good is lost.
View Article and Find Full Text PDFPNAS Nexus
November 2024
Center for Frontier Research, National Institute of Genetics, 1111 Yata, Mishima, Shizuoka 411-8540, Japan.
A tragedy of the commons, in which rational behavior of individuals to maximize their own payoffs depletes common resources, is one of the most important research topics in game theory. To better understand the social dilemma problem, recent studies have developed a theoretical framework of feedback-evolving game where individual behavior affects an environmental (renewable) resource and the environmental resource changes individual payoffs. While previous studies assumed that the frequency of defectors increases (prisoner's dilemma [PD] game) when the environmental resource is abundant to investigate an oscillating tragedy of the commons, it is also possible for other types of game to produce the social dilemma.
View Article and Find Full Text PDFWorld J Pediatr
December 2024
Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, North Terrace, Adelaide, South Australia, 5006, Australia.
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