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| Coale Fertility Indices× | Total Fertility Rate× | |
|---|---|---|
| Област | Демография | Демография |
| Семейство | Process / pipeline | Process / pipeline |
| Година на възникване≠ | 1969 | 2001 |
| Създател≠ | Ansley J. Coale (Princeton European Fertility Project) | Classical demographic index (formalized by Preston, Heuveline & Guillot) |
| Тип≠ | Standardized indices of fertility relative to a maximum (Hutterite) schedule | Period summary fertility index synthesizing age-specific fertility rates |
| Основополагащ източник≠ | Coale, A. J., & Watkins, S. C. (Eds.). (1986). The Decline of Fertility in Europe. Princeton University Press. ISBN: 9780691629278 | Preston, S. H., Heuveline, P., & Guillot, M. (2001). Demography: Measuring and Modeling Population Processes. Blackwell. ISBN: 9781557864512 |
| Други названия≠ | Coale's Indices, Princeton European Fertility Project Indices, Indices of Overall, Marital and Nuptiality Fertility | TFR, Period total fertility rate, Sum of age-specific fertility rates, Toplam Doğurganlık Hızı |
| Свързани | 4 | 4 |
| Резюме≠ | Coale's fertility indices are a set of standardized measures — If (overall fertility), Ig (marital fertility), Ih (nonmarital fertility), and Im (proportion married, an index of marriage) — that express a population's childbearing relative to the highest reliably recorded natural-fertility schedule, that of the Hutterites. Devised by Ansley Coale for the Princeton European Fertility Project, they hold the maximum age schedule of fertility fixed so that differences between populations reflect real differences in fertility and marriage rather than age structure, and they tie together into a single identity linking overall fertility to marriage and to fertility within and outside marriage. | The total fertility rate (TFR) is the central period measure of fertility in demography: the average number of children a woman would bear over her lifetime if she experienced, at each age, the age-specific fertility rates observed in a given year. Computed by summing age-specific fertility rates across the reproductive ages, the TFR removes the influence of population age structure and gives a single, intuitive figure — children per woman — that is comparable across populations and over time. |
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