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首页> 外文期刊>Journal of Development Economics >Effects of longevity and dependency rates on saving and growth: Evidence from a panel of cross countries
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Effects of longevity and dependency rates on saving and growth: Evidence from a panel of cross countries

机译：寿命和抚养率对储蓄和增长的影响：来自一组跨国机构的证据

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While earlier empirical studies found a negative saving effect of old-age dependency rates without considering longevity, recent studies have found that longevity has a positive effect on growth without considering old-age dependency rates. In this paper, we first justify the related yet independent roles of longevity and old-age dependency rates in determining saving and growth by using a growth model that encompasses both neoclassical and endogenous growth models as special cases. Using panel datafrom a recent World Bank data set, we then find that the longevity effect is positive and the dependency effect is negative in savings and investment regressions. The estimates indicate that the differences in the demographic variables across countries or over time can well explain the differences in aggregate savings rates. We also find that both population age structure and life expectancy are important contributing factors to growth.
机译：尽管较早的实证研究发现，不考虑寿命的负面影响是老年人抚养率的降低，但最近的研究发现，不考虑老年人抚养率的情况下，寿命对增长具有积极的影响。在本文中，我们首先通过使用包括新古典和内生增长模型在内的增长模型，证明寿命和老年抚养率在确定储蓄和增长方面的相关但独立的作用是合理的。然后，使用来自世界银行最新数据集的面板数据，我们发现在储蓄和投资回归中，寿命效应为正，抚养效应为负。估计数表明，各国之间或随时间推移的人口统计学变量差异可以很好地解释总储蓄率的差异。我们还发现，人口年龄结构和预期寿命都是促进增长的重要因素。

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