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	Bongaarts Proximate Determinants	Net Reproduction Rate
Odbor	Demografia	Demografia
Rodina	Process / pipeline	Process / pipeline
Rok vzniku	1978	2001
Tvorca	John Bongaarts	Richard Böckh and Robert Kuczynski (formalized in Preston, Heuveline & Guillot)
Typ	Multiplicative decomposition of fertility into behavioural and biological factors	Period measure of generational replacement combining fertility and mortality
Pôvodný zdroj	Bongaarts, J. (1978). A framework for analyzing the proximate determinants of fertility. Population and Development Review, 4(1), 105–132.	Preston, S. H., Heuveline, P., & Guillot, M. (2001). Demography: Measuring and Modeling Population Processes. Blackwell. ISBN: 9781557864512
Ďalšie názvy	Proximate determinants framework, Bongaarts fertility-inhibiting indices, Cm Cc Ca Ci model, Yakın Belirleyiciler Çerçevesi	NRR, Net reproduction ratio, Net reproductive rate, Net Üreme Hızı
Príbuzné	4	4
Zhrnutie	The Bongaarts framework of the proximate determinants of fertility decomposes a population's fertility into a biological maximum reduced by a small set of directly fertility-inhibiting factors: the proportion of women in sexual unions, contraceptive use, induced abortion, and postpartum infecundability. By expressing observed fertility as total fecundity multiplied by four indices between zero and one, it quantifies how much each behavioural and biological channel suppresses fertility below its potential ceiling.	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.