The contribution of survival to changes in the net reproduction rate

Tianyu Shen, Ester Lazzari and Vladimir Canudas-Romo

Population Studies, 2023, vol. 77, issue 2, 163-178

Abstract: The net reproduction rate (NRR) is an alternative fertility measure to the more common total fertility rate (TFR) and accounts for the mortality context of the population studied. This study is the first to compare NRR trends in high- and low-income countries and to decompose NRR changes over time into fertility and survival components. The results show that changes in the NRR have been driven mostly by changes in fertility. Yet improvements in survival have also played an important role in explaining changes in the NRR over the last century and represent a substantial component of change in some low-income countries today. Furthermore, the decomposition of the survival component by age indicates that the survival effect on population reproduction is concentrated mostly in infancy, although the HIV/AIDS epidemic altered this age profile in some populations. The findings highlight the importance of mortality’s effect on reproduction in specific periods and contexts.

Date: 2023
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DOI: 10.1080/00324728.2023.2187441

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