方法对比

	Child-Woman Ratio	Gross Reproduction Rate
领域	人口学	人口学
方法族	Process / pipeline	Process / pipeline
起源年份	1900	1928
提出者	Established demographic indicator (census-based)	Richard Böckh (concept) and Robert R. Kuczynski (popularization)
类型	Indirect fertility index from a single census age-sex distribution	Single-sex summary fertility measure counting daughters per woman
开创性文献	Preston, S. H., Heuveline, P., & Guillot, M. (2001). Demography: Measuring and Modeling Population Processes. Blackwell. ISBN: 9781557864512	Preston, S. H., Heuveline, P., & Guillot, M. (2001). Demography: Measuring and Modeling Population Processes. Blackwell. ISBN: 9781557864512
别名	CWR, Child-to-woman ratio, Census fertility ratio, Çocuk-Kadın Oranı	GRR, Gross reproductive rate, Daughters per woman (without mortality), Brüt Üreme Hızı
相关	4	4
摘要	The child-woman ratio is the number of young children, usually those under five, per woman of reproductive age in a population. Computed from a single census age-sex distribution, it is the simplest indirect indicator of fertility, designed for settings where birth registration is absent or unreliable. Because young children are the surviving product of recent births, their number relative to potential mothers serves as a rough proxy for the level of childbearing over the preceding few years.	The gross reproduction rate is the average number of daughters a woman would bear over her lifetime if she experienced a given set of age-specific fertility rates and survived through all her childbearing years. It is a single-sex reproduction measure: by counting only daughters, it tracks how a generation of women replaces itself, ignoring the mortality that would thin the next generation. As such it sits between the total fertility rate, which counts all children, and the net reproduction rate, which discounts daughters for the chance of dying before they themselves reproduce.