What is meant by quantum of fertility and tempo of fertility? How are they thought to...

What is meant by quantum of fertility and tempo of fertility? How are they thought to change with development?

Expert Solution

The Total Fertility Rate (TFR) measures the average number of births a woman would have by the time she reaches the end of her reproductive years, if she experiences the age-specific fertility rates observed in a given period.
This measure “transposes” a momentary experience across the lifetime of a cohort. The postponement of fertility introduces distortions into this transposition.
The completed fertility rate (CFR), on the other hand, presents the actual average number of children that women of a real cohort do have by the end of their childbearing years.
The changes in completed fertility are often referred to as “quantum” effects, while the changes in timing of childbearing are often called “tempo” effects.
In conventional use quantum refers to the average number of children born to women in a cohort, and tempo to the timing of births by age of mother within the cohort. Tempo is often measured by the mother‘s mean age at child bearing.
Age definitely has an impact on the tempo effct of fertility,since a late age is associated with more risk while child birth.

Hayet Jeridi answered 3 months ago

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