Mazzuco, Stefano and Scarpa, Bruno (2011) Fitting age-specific fertility rates by a skew-symmetric probability density function. [Working Paper] WORKING PAPER SERIES, 10/2011 . , PADOVA (Inedito)
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Mixture probability density functions had recently been proposed
to describe some fertility patterns characterized by a bi-modal shape. These mixture probability density functions appear to be adequate when the fertility pattern is actually bi-modal but less useful when the shape of age-specific fertility rates is unimodal. A further model is proposed based on skew-symmetric probability density functions. This model is both more parsimonious than mixture distributions and more flexible, showing a good fit with several shapes (bi-modal or unimodal) of fertility patterns.
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