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Follow us What is Natural Fertility? The Remodelling of a Concept
Xie, Yu. 1990. "What is Natural Fertility? The Remodelling of a Concept." PSC Research Report No. 90-173. April 1990.
This paper extends the work of Wilson, Oeppen and Pardoe in applying Coale and Trussell's formulation to model natural fertility. It applies log-linear models to Henry's data on natural fertility. It tests various assumptions leading to ways of obtaining a standard fertility schedule through explicitly modelling the natural fertility data. The models specify that births follow an independent Poisson distribution for each age interval of each population. Identification and estimation problems are discussed. All parameters are estimated through an interative maximum- likelihood procedure.
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