Net reproduction rate

The net reproduction rate, R0, is the average number of daughters that would be born to a female (or a group of females) if she passed through her lifetime conforming to the age-specific fertility and mortality rates of a given year. This rate is similar to the gross reproduction rate but takes into account that some females will die before completing their childbearing years. An R0 of one means that each generation of mothers is having exactly enough daughters to replace themselves in the population.[1][2] If the R0 is less than one, the reproductive performance of the population is below replacement level.

The R0 is particularly relevant where sex ratios at birth are significantly affected by the use of reproductive technologies, or where life expectancy is low.

The current (2015–20) estimate for the R0 worldwide under the UN’s medium variant model is 1.09 daughters per woman.[3]

References

  1. ^[1] Retrieved on August 28, 2007. Archived February 24, 2007, at the Wayback Machine
  2. ^Dharmalingham, A. (2004). “Reproductivity”. In David Swanson; Jacob S. Siegel; Henry S. Shryock (eds.). The Methods and Materials of Demography (2 ed.). Emerald Group Publishing. p. 819. ISBN 0-12-641955-8.
  3. ^“UNdata | record view | Net reproduction rate (surviving daughters per woman)”. data.un.org. Retrieved 2019-12-14.

Ofer Abarbanel – Executive Profile

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