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Evolutionary Family Research—Cost-Benefit Balance at the Interface between Kin Selection and Social Context

Willführ, Kai P. LU (2025) p.97-122
Abstract

Many theories based on Darwinian evolutionary theory are of particular relevance to family research. The theory of kin selection is not limited to social behavior of animals, but also explains why humans in all cultures and epochs organize their reproductive and productive activities in family networks and family households. Even though the willingness to cooperate in the human family ultimately goes back to kin selection, it is not the only factor determining the relationships of family members. Genuine altruism between closely related family members is possible due to indirect fitness benefits. However, family members are not only trusting allies, but also fierce competitors. Even among siblings or between parents and children,... (More)

Many theories based on Darwinian evolutionary theory are of particular relevance to family research. The theory of kin selection is not limited to social behavior of animals, but also explains why humans in all cultures and epochs organize their reproductive and productive activities in family networks and family households. Even though the willingness to cooperate in the human family ultimately goes back to kin selection, it is not the only factor determining the relationships of family members. Genuine altruism between closely related family members is possible due to indirect fitness benefits. However, family members are not only trusting allies, but also fierce competitors. Even among siblings or between parents and children, support and help are not granted unconditionally, but are offered based on a cost-benefit calculation. The costs and benefits depend on the social context. The social context is relevant between societies, for research comparing families across cultures and periods, and for research studying differences within populations between social groups. Inter-societal perspective, which compares the family across cultures and epochs, as well as to Evolutionary family research is therefore fundamentally an interdisciplinary research project. This article introduces the basics of evolutionary family research and illuminates its most important aspects.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Behavioral ecology, Consanguineous marriages, Family household, Fitness, Kin selection, Lineage conflict
host publication
Evolutionary Social Sciences : A Tour - A Tour
pages
26 pages
publisher
Springer Science and Business Media B.V.
external identifiers
  • scopus:105023335766
ISBN
9783658480288
9783658480271
DOI
10.1007/978-3-658-48028-8_6
language
English
LU publication?
yes
id
e045b8be-57b7-4107-a086-3e4b6808c3de
date added to LUP
2026-02-04 11:02:03
date last changed
2026-10-03 08:09:25
@inbook{e045b8be-57b7-4107-a086-3e4b6808c3de,
  abstract     = {{<p>Many theories based on Darwinian evolutionary theory are of particular relevance to family research. The theory of kin selection is not limited to social behavior of animals, but also explains why humans in all cultures and epochs organize their reproductive and productive activities in family networks and family households. Even though the willingness to cooperate in the human family ultimately goes back to kin selection, it is not the only factor determining the relationships of family members. Genuine altruism between closely related family members is possible due to indirect fitness benefits. However, family members are not only trusting allies, but also fierce competitors. Even among siblings or between parents and children, support and help are not granted unconditionally, but are offered based on a cost-benefit calculation. The costs and benefits depend on the social context. The social context is relevant between societies, for research comparing families across cultures and periods, and for research studying differences within populations between social groups. Inter-societal perspective, which compares the family across cultures and epochs, as well as to Evolutionary family research is therefore fundamentally an interdisciplinary research project. This article introduces the basics of evolutionary family research and illuminates its most important aspects.</p>}},
  author       = {{Willführ, Kai P.}},
  booktitle    = {{Evolutionary Social Sciences : A Tour}},
  isbn         = {{9783658480288}},
  keywords     = {{Behavioral ecology; Consanguineous marriages; Family household; Fitness; Kin selection; Lineage conflict}},
  language     = {{eng}},
  pages        = {{97--122}},
  publisher    = {{Springer Science and Business Media B.V.}},
  title        = {{Evolutionary Family Research—Cost-Benefit Balance at the Interface between Kin Selection and Social Context}},
  url          = {{http://dx.doi.org/10.1007/978-3-658-48028-8_6}},
  doi          = {{10.1007/978-3-658-48028-8_6}},
  year         = {{2025}},
}