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Does Sub‐Saharan Africa'S Rapid Population Growth Have Positive Or Negative Effects On Aggregate Domestic Investment?

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  • Mwoya Byaro
  • Abel Kinyondo
  • Deusdedit A. Lemnge

Abstract

This study examines the effect of population growth on aggregate domestic investments in 45 Sub‐Saharan African (SSA) countries over the period 2000–2020. It applies the Quantile Method of Moments with fixed effects (i.e., MM‐QR), which has the ability to identify both negative and positive effects while controlling for trade, HIV/AIDS prevalence, and economic growth. The findings show that SSA's rapid population growth has a positive and statistically significant effect on aggregate domestic investments. Findings from this study show that an increase in population growth in the 10th to 60th quantiles is associated with an increase of domestic investment in SSA. This suggests that, as the population grows in SSA, it generates demand for domestic investments such as healthcare services, education, and other social services. Our findings also show that trade is positive and significant across all quantiles (10th to 90th). We find evidence that disease risks, such as the prevalence of HIV/AIDS, slowed the increase in domestic investment in the region across all quantiles (10th to 90th). We conclude by arguing that, since SSA's population growth will double in the near future, the region is bound to become world's next investment hub. In order to enable long‐term domestic investments in the region, future policy options should take the challenges of population growth into account. Este estudio examina el efecto del crecimiento de la población en las inversiones internas agregadas en 45 paises de África subsahariana (SSA) durante el período 2000–2020. Aplica el método de cuantiles de momentos con efectos fijos (es decir, MM‐QR) mientras controla el comercio, la prevalencia del VIH/SIDA y el crecimiento económico. Los hallazgos de este estudio muestran que un aumento en el crecimiento de la población en los cuantiles 10 a 60 está asociado con un aumento de la inversión interna en ASS. Esto sugiere que, a medida que crece la población en ASS, genera demanda de inversiones nacionales, como servicios de salud, educación y otros servicios sociales. Nuestros hallazgos también muestran que el comercio es positivo y significativo en todos los cuantiles (del 10 al 90). Los resultados también revelaron que los riesgos de enfermedades, como la prevalencia del VIH/SIDA, desaceleraron el aumento de la inversión nacional en la región en todos los cuantiles (del 10 al 90). Concluimos argumentando que dado que el crecimiento de la población de África Subsahariana se duplicará en un futuro cercano, la región está destinada a convertirse en el próximo centro de inversión del mundo. Posteriormente, las opciones de política futuras deberían considerar abordar los desafíos que acompañan al crecimiento de la población para permitir inversiones nacionales sostenibles en la región. 本研究分析了2000–2020年间人口增长对45个撒哈拉以南非洲(SSA)国家的国内投资总量的影响。本研究使用具有固定效应的矩估计‐分位数回归(即MM‐QR),同时控制贸易、艾滋病毒/艾滋病患病率和经济增长的影响。研究结果表明,第10到第60个分位数区间的人口增长量的增加与“SSA国内投资的增加”相关。这表明,随着SSA的人口增长,会产生一系列国内投资需求,包括医疗保健服务、教育和其他社会服务。研究结果还表明,贸易在所有分位数(第10到第90)中都是积极且重要的。此外,疾病风险(例如艾滋病毒/艾滋病患病率)减缓了该地区所有分位数(第10到第90)区间的国内投资增长。我们的结论认为,由于SSA的人口增长将在不久的将来翻一番,该地区必将成为世界下一个投资中心。未来的政策选择应考量应对人口增长带来的挑战,以允许在该地区进行可持续的国内投资。

Suggested Citation

  • Mwoya Byaro & Abel Kinyondo & Deusdedit A. Lemnge, 2023. "Does Sub‐Saharan Africa'S Rapid Population Growth Have Positive Or Negative Effects On Aggregate Domestic Investment?," World Affairs, John Wiley & Sons, vol. 186(3), pages 806-824, September.
  • Handle: RePEc:wly:woraff:v:186:y:2023:i:3:p:806-824
    DOI: 10.1177/00438200231168288
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