What is a replacement rate in a population, and how is the number calculated?
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A replacement rate is simply the rate that a population procreates to sustain the current population.
If you have 100 reproducing couples in a village that make up the entire population for example. Each couple would need to have around 2.1 or 2.3 children. One child for each parent and the remaining amount is to account for accidents, child mortality, etc.
The 2.1 and 2.3 figures are the amounts the UN uses essentially as a generic formula for a developed or developing nation respectively. Technically though each nation would use specific figures based upon unique factors it has such as child mortality, infertility, adult mortality rates, etc. to calculate.
A replacement rate is simply the rate that a population procreates to sustain the current population.
If you have 100 reproducing couples in a village that make up the entire population for example. Each couple would need to have around 2.1 or 2.3 children. One child for each parent and the remaining amount is to account for accidents, child mortality, etc.
The 2.1 and 2.3 figures are the amounts the UN uses essentially as a generic formula for a developed or developing nation respectively. Technically though each nation would use specific figures based upon unique factors it has such as child mortality, infertility, adult mortality rates, etc. to calculate.
A replacement rate is simply the rate that a population procreates to sustain the current population.
If you have 100 reproducing couples in a village that make up the entire population for example. Each couple would need to have around 2.1 or 2.3 children. One child for each parent and the remaining amount is to account for accidents, child mortality, etc.
The 2.1 and 2.3 figures are the amounts the UN uses essentially as a generic formula for a developed or developing nation respectively. Technically though each nation would use specific figures based upon unique factors it has such as child mortality, infertility, adult mortality rates, etc. to calculate.
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