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	Own-Children Method	Net Reproduction Rate
Ämnesområde	Demografi	Demografi
Familj	Process / pipeline	Process / pipeline
Ursprungsår	1986	2001
Upphovsperson	Lee-Jay Cho, Robert D. Retherford & Minja Kim Choe	Richard Böckh and Robert Kuczynski (formalized in Preston, Heuveline & Guillot)
Typ	Indirect reverse-survival estimation of age-specific fertility from census microdata	Period measure of generational replacement combining fertility and mortality
Ursprungskälla	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
Alias	OCM, Own-children fertility estimation, Reverse-survival fertility estimation from matched children, Kendi Çocukları Yöntemi	NRR, Net reproduction ratio, Net reproductive rate, Net Üreme Hızı
Närliggande	4	4
Sammanfattning	The own-children method is an indirect technique for estimating age-specific fertility rates for the years preceding a census or survey, using only a single cross-sectional dataset in which children can be linked to their mothers within the same household. By reverse-surviving matched mother-child pairs back through time, it reconstructs annual birth rates and total fertility for roughly the previous 15 years without requiring any vital-registration data on births.	The net reproduction rate (NRR) is the demographic measure of generational replacement: the average number of daughters a woman would bear who survive to the age their mother was when she bore them, given the period's age-specific fertility rates and female mortality. By combining fertility with survival, the NRR answers the fundamental question of whether a population is replacing itself — an NRR of one means each generation of women exactly reproduces the next, below one signals long-run decline, and above one signals growth.