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A new parametric model for fitting fertility curves

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  • S. Bermúdez
  • R. Blanquero
  • J. A. Hernández
  • J. Planelles

Abstract

What is the optimum way of describing the age-specific fertility pattern by mathematical functions? We propose a parametric fitting model, based on a mixture of Weibull functions, which performs well for countries where the fertility curve shows a non-traditional pattern. We also consider a simplified version of this model with a reduced number of parameters that can be applied to fit fertility curves in countries where the fertility pattern exhibits a classical shape. To test the new model, fertility curves for a range of countries and years are fitted empirically. The results show that both versions of the new model outperform existing procedures in most cases.

Suggested Citation

  • S. Bermúdez & R. Blanquero & J. A. Hernández & J. Planelles, 2012. "A new parametric model for fitting fertility curves," Population Studies, Taylor & Francis Journals, vol. 66(3), pages 297-310.
    • Handle: RePEc:taf:rpstxx:v:66:y:2012:i:3:p:297-310
    DOI: 10.1080/00324728.2012.695802
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    Cited by:

    1. Sigurd Dyrting & Andrew Taylor & Tom Wilson, 2024. "Application of P-TOPALS for Smoothing Input Data for Population Projections ‘At the Edge’," Population Research and Policy Review, Springer;Southern Demographic Association (SDA), vol. 43(2), pages 1-28, April.

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