Comment on Preston and Campbell's "Differential Fertility and the Distribution of Traits"

  title={Comment on Preston and Campbell's "Differential Fertility and the Distribution of Traits"},
  author={David Lam},
  journal={American Journal of Sociology},
  pages={1033 - 1039}
  • D. Lam
  • Published 1 March 1993
  • Economics
  • American Journal of Sociology
Preston and Campbell proposed that the higher fertility among individuals with a particular characteristic does not necessarily imply that the prevalence of that characteristic in the population will increase over time. In Preston and Campbells first model endogamous mating occurs within IQ categories. As long as all children do not have the same IQ as their parents a steady-rate distribution of IQ will be reached in the population. The critical assumptions of this result have to do with the… 
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  • Economics
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