A parsimonious characterization of change in global age-specific and total fertility rates.

A parsimonious characterization of change in global age-specific and total fertility rates.
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全球特定年龄和总生育率变化的变化表征。

DOI:
10.1371/journal.pone.0190574
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发表时间:
2018
期刊:
影响因子:
3.7
通讯作者:
Clark SJ
Clark SJ
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Pantazis A;Clark SJ

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本研究旨在通过分析年龄别生育率,了解1950-2010年全球生育率的趋势。该方法将总生育率模型中的总体水平和不同年龄组生育率的模式结合起来,以研究年龄组生育率变化与生育率下降之间的关系。奇异值分解是用来捕捉特定年龄的生育率曲线的变化,同时减少了维度的数量,允许曲线几乎完全用三个参数来描述。随着时间的推移,区域模式和趋势在参数值中很明显,这表明这种方法为考虑全球生育率下降提供了一个有用的工具。第二个和第三个参数进行了分析,使用基于模型的聚类,以检查随时间和地点的特定年龄生育率的模式,得到四个集群。一个国家的人口转变可以通过不同群组的成员随时间的推移进行追踪,并确定随时间推移的轨迹和生育率下降的区域模式。
This study aims to understand trends in global fertility from 1950-2010 though the analysis of age-specific fertility rates. This approach incorporates both the overall level, as when the total fertility rate is modeled, and different patterns of age-specific fertility to examine the relationship between changes in age-specific fertility and fertility decline. Singular value decomposition is used to capture the variation in age-specific fertility curves while reducing the number of dimensions, allowing curves to be described nearly fully with three parameters. Regional patterns and trends over time are evident in parameter values, suggesting this method provides a useful tool for considering fertility decline globally. The second and third parameters were analyzed using model-based clustering to examine patterns of age-specific fertility over time and place; four clusters were obtained. A country’s demographic transition can be traced through time by membership in the different clusters, and regional patterns in the trajectories through time and with fertility decline are identified.
DOI: 10.2307/2733910
发表时间: 1974-01-01
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