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Some further evidence against the Trivers Willard hypothesis in homo sapiens


  • Kevin Denny

    (School of Economics & Geary Institute, University College Dublin)


The Trivers Willard hypothesis – that higher maternal quality is associated with a higher sex ratio – is tested using a large population survey from 12 European countries. Several outcomes are studied, the proportion of children born who are male and the sex of the first three children. The principal explanatory variables of interest are mother’s education, marital status and age at birth. Little evidence, if any, of such a relationship is found.

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  • Kevin Denny, 2008. "Some further evidence against the Trivers Willard hypothesis in homo sapiens," Working Papers 200822, Geary Institute, University College Dublin.
  • Handle: RePEc:ucd:wpaper:200822

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    sex ratio; maternal quality;

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