The diversity in wealth and social status is present not only among humans, but throughout the animal world. We account for this observation by generating random variables that determine the social diversity of players engaging in the prisoner's dilemma game. Here the term social diversity is used to address extrinsic factors that determine the mapping of game payoffs to individual fitness. These factors may increase or decrease the fitness of a player depending on its location on the spatial grid. We consider different distributions of extrinsic factors that determine the social diversity of players, and find that the power-law distribution enables the best promotion of cooperation. The facilitation of the cooperative strategy relies mostly on the inhomogeneous social state of players, resulting in the formation of cooperative clusters which are ruled by socially high-ranking players that are able to prevail against the defectors even when there is a large temptation to defect. To confirm this, we also study the impact of spatially correlated social diversity and find that cooperation deteriorates as the spatial correlation length increases. Our results suggest that the distribution of wealth and social status might have played a crucial role by the evolution of cooperation amongst egoistic individuals.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevE.77.011904 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Raising awareness and addressing inequities for people with Down syndrome in South Africa.
Int J Equity Health
January 2025
Tekano, Capetown, South Africa.
Globally, individuals with Down syndrome (DS) face profound inequities in social and health care access. These challenges are further compounded by racial disparities as well as a lack of awareness, research, and support, particularly in the Global South. This commentary discusses the multifaceted challenges and disparities encountered by people with DS in South Africa, highlighting the need for targeted interventions.
View Article and Find Full Text PDFDiagnosis, treatment, and management of Mpox in urban Informal Settlements in Southwestern Nigeria: an ethnographic approach.
BMC Public Health
January 2025
Health & Nutrition Cluster, Institute of Development Studies, University of Sussex, Brighton, UK.
Background: Global re-emergence of the zoonotic viral disease, Mpox (Monkeypox) has drawn global attention, leading to its declaration as a Public Health Emergency of International Concern (PHEIC) by World Health Organisation (WHO) in July 2022. Nigeria is a spotlight identified for the viral disease outbreak, with attention drawn on its transmission to non-endemic nations. With the country's healthcare challenges, care seeking practices particularly amongst low-income urban informal settlement populations are diverse - presenting challenges to both case identification and management during an outbreak.
View Article and Find Full Text PDFApplying principles of adult learning to rural health electives in a medical school curriculum.
BMC Med Educ
January 2025
Department of Rural Health, Melbourne Medical School, The University of Melbourne, 49 Graham Street, Shepparton, VIC, 3630, Australia.
The health disparities between rural and urban populations in Australia, driven by socioeconomic, environmental, and healthcare access factors, highlight the urgent need for rural-focused medical education. The Melbourne Medical School's Rural Health Discovery program addresses this need by integrating adult learning principles within a redesigned curriculum that includes the Rural Health Foundations and Integrating Rural Health topics. These Discovery topics engage medical students from diverse backgrounds through a blend of self-directed learning, problem-solving, and immersive clinical placements in rural settings.
View Article and Find Full Text PDFCancer-related health behaviors during the COVID 19 pandemic in geographically diverse samples across the US.
BMC Cancer
January 2025
University of Virginia Comprehensive Cancer Center, Charlottesville, VA, 22903, USA.
Background: The COVID-19 pandemic involved business closures (e.g., gyms), social distancing policies, and prolonged stressful situations that may have impacted engagement in health behaviors.
View Article and Find Full Text PDFSimulated retail food environments: A literature review of systems science approaches to advance equity in access to healthy diets.
Obes Rev
January 2025
Department of Epidemiology and Biostatistics, University at Albany School of Public Health, Rensselaer, NY, USA.
As researchers increasingly utilize systems science simulation modeling (SSSM), little is known about how and by whom SSSMs are being leveraged to address inequities in access to healthy diets. We evaluated the extent to which studies (n = 66) employing SSSM to examine retail food environments (RFEs): included three pillars of equity (social position, human capital, socioeconomic and political context) that shape RFEs and access to healthy diets; grounded model design and development in theory; engaged with diverse stakeholders and lived experiences related to RFEs; and translated model findings towards addressing inequities in RFEs. Most studies (n = 58) included some model characteristics related to social position (e.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!