why is the replacement level fertility 2.1 instead of 2

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  • Is the replacement level of fertility generally taken as 2?

  • Your claim that the replacement level fertility is universally taken as 2.1 is false. This rate is roughly 2.1 children per woman for most countries, although it may modestly vary with mortality rates. In developed countries, replacement level fertility can be taken as requiring an average of 2.1 children per woman.

  • Does a change to replacement level fertility lead to zero population growth?

  • A change to replacement level fertility therefore leads to zero population growth only in the long run. The size of the population at which population growth levels off will usually differ from the current population size.

  • What is the difference between total fertility and total fertility rate?

  • Fertility is a specific couple’s ability to successfully reproduce. Fertility rate is the number of births for every 1,000 women between the ages of 15 and 44 within a calendar year. Total fertility rate is the average number of births per woman and is often abbreviated as TFR.

  • What is the difference between replacement level and replacement rate?

  • Replacement level is the number of births necessary to maintain a population after taking into account how many leave it due to death, moving, or other reasons. The replacement rate is a simple calculation of how many births it will take to replace people that have left the community through death, emigration, or another reason.

    why is the replacement level fertility 2.1 instead of 2

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