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Theoretical Basis of Measures of Natural Fertility

  • David P. Smith
  • Nathan Keyfitz
Chapter
Part of the Demographic Research Monographs book series (DEMOGRAPHIC)

Abstract

In his remarks on Gini, Henry notes that the mean fecundability of women who conceive in the first month of marriage (in Gini's notation, paper 40 above: \(\Sigma p^2_{i}n_{i1}\left./ \Sigma p_in_{i1}\right)\)may also be written \(\bar{p}(1+c^{2})\), with \(\bar{p}\) the arithmetic mean fecundability of the non-sterile population and c the coefficient of variation.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • David P. Smith
    • 1
  • Nathan Keyfitz
    • 2
  1. 1.Harvard UniversityCambridgeUSA
  2. 2.Department of SociologyHarvard UniversityCambridgeUSA

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