ArticleScientific reports2019
Network Effects of Demographic Transition.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- The role of dogs is associated with owner management practices and characteristics, but not with perceived canine behaviour problems.Scientific reports · 2024Article
- A data-driven approach shows that individuals' characteristics are more important than their networks in predicting fertility preferences.Royal Society open science · 2023Article
- Human group size puzzle: why it is odd that we live in large societies.Royal Society open science · 2023Article
- The anatomy of a population-scale social network.Scientific reports · 2023Article
- Clustering drives cooperation on reputation networks, all else fixed.Royal Society open science · 2023Article
- Does gender structure social networks across domains of cooperation? An exploration of gendered networks among matrilineal and patrilineal Mosuo.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023Article
- Cooperation and partner choice among Agta hunter-gatherer children: An evolutionary developmental perspective.PloS one · 2023Article
- A manifesto for palaeodemography in the twenty-first century.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021Article
- A multilevel analytical framework for studying cultural evolution in prehistoric hunter-gatherer societies.Biological reviews of the Cambridge Philosophical Society · 2020Review
- Homophily in Personality Enhances Group Success Among Real-Life Friends.Frontiers in psychology · 2020Article
- Fictional narrative as a variational Bayesian method for estimating social dispositions in large groups.Journal of mathematical psychology · 2019Article
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Authors and funding
1 author.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Traditional human societies use two of biology's solutions to reduce free-riding: by collaborating with relatives, they rely on the mechanism of kin-selection, and by forming highly clustered social kin-networks, they can efficiently use reputation dynamics. Both of these solutions assume the presence of relatives. This paper shows how social networks change during demographic transition. With falling fertility, there are fewer children that could be relatives to one another. As the missing kin are replaced by non-kin friends, local clustering in the social network drops. This effect is compounded by increasing population size, characteristic of demographic transition. The paper also shows that the speed at which reputation spreads in the network slows down due to both falling fertility and increasing group size. Thus, demographic transition weakens both mechanisms for eliminating free-riders: there are fewer relatives around, and reputation spreads slower. This new link between falling fertility and the altered structure of the social network offers novel interpretations of the origins of legal institutions, the Small World phenomenon, the social impact of urbanisation, and the birds-of-a-feather friendship choice heuristic.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.