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Correlations between frequencies of kin.

T W Pullum1, D A Wolf

  • 1Population Research Center, University of Texas, Austin 78712.

Demography
|August 1, 1991
PubMed
Summary

Formal models reveal that kin correlations can arise even without direct fertility transmission between mothers and daughters. This study explores mechanisms influencing these correlations in kin networks.

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Area of Science:

  • Demography
  • Sociology
  • Network Analysis

Background:

  • Formal and microsimulation models are increasingly used to study kin network structure and dynamics.
  • Existing models often assume independent fertility across generations, which contradicts empirical data showing kin correlations.
  • Observed positive correlations in kin frequencies challenge the assumption of independent fertility.

Purpose of the Study:

  • To investigate the origins of kin correlations in generational fertility.
  • To calculate expected kin correlations using formal models, even when mother-daughter fertility is independent.
  • To evaluate potential mechanisms of fertility transmission and their impact on kin correlations.

Main Methods:

  • Utilized formal modeling techniques to analyze kin network structures.
  • Calculated theoretical correlations between different kin categories.
  • Examined scenarios with independent fertility between mothers and daughters.

Main Results:

  • Demonstrated that significant kin correlations can emerge independently of direct fertility transmission.
  • Identified and evaluated specific mechanisms that could lead to mother-daughter fertility correlations.
  • Quantified the implications of these mechanisms for overall kin correlations.

Conclusions:

  • The assumption of uncorrelated fertility in generational models is a limitation.
  • Kin correlations can be influenced by factors beyond direct fertility inheritance.
  • Further research into fertility transmission mechanisms is crucial for accurate kin network modeling.

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