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| Tempo-Adjusted Fertility× | Mean Age at Childbearing× | |
|---|---|---|
| 领域 | 人口学 | 人口学 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 1998 | 1968 |
| 提出者≠ | John Bongaarts & Griffith Feeney | Standard demographic practice (fertility schedule moments) |
| 类型≠ | Tempo-and-quantum adjustment of the period total fertility rate | Summary location measure of the age pattern of fertility |
| 开创性文献≠ | Bongaarts, J., & Feeney, G. (1998). On the quantum and tempo of fertility. Population and Development Review, 24(2), 271–291. DOI ↗ | Preston, S. H., Heuveline, P., & Guillot, M. (2001). Demography: Measuring and Modeling Population Processes. Blackwell. ISBN: 9781557864512 |
| 别名 | Bongaarts-Feeney adjustment, Tempo-adjusted TFR, Quantum-tempo decomposition of fertility, Tempo Düzeltmeli Doğurganlık | MAC, Mean age of the fertility schedule, Mean age of mothers at birth, Ortalama Doğurganlık Yaşı |
| 相关 | 4 | 4 |
| 摘要≠ | Tempo-adjusted fertility is the Bongaarts-Feeney correction of the period total fertility rate that removes the distortion introduced when the timing of childbearing changes. When women collectively postpone (or advance) births, the conventional period total fertility rate is artificially depressed (or inflated) even if the number of children women ultimately have is unchanged; the adjustment inflates each birth-order-specific rate by a factor based on the changing mean age at childbearing to recover an undistorted measure of fertility quantum. | The mean age at childbearing is the average age of mothers at the birth of their children, computed as the fertility-rate-weighted mean of maternal age over the age-specific fertility schedule. As the first moment of the fertility curve, it summarizes the tempo — the timing — of childbearing in a single number, complementing the total fertility rate, which measures quantum, or how many children are born. |
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