Fitting age-specific fertility rates by a skew- symmetric probability density function
نویسندگان
چکیده
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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Using Skew-Logistic Probability Density Function as a Model for Age-Specific Fertility Rate Pattern
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