V2EX dependency ratio

Dependency Ratio

定义 Definition

Dependency ratio(抚养比/扶养比):人口统计与经济学中的指标,用来表示需要被“供养/支持”的人口(通常指014岁与65岁及以上)相对于劳动年龄人口(常用1564岁)的比例。抚养比越高,意味着每位劳动年龄人口需要承担的抚养压力越大。(在不同机构口径下,年龄分组可能略有差异。)

发音 Pronunciation (IPA)

/dpndnsi rei.o/

例句 Examples

The dependency ratio is rising as the population ages.
随着人口老龄化,抚养比正在上升。

If fertility stays low and life expectancy keeps increasing, the dependency ratio could climb sharply, putting pressure on pensions, healthcare, and public finances.
如果生育率持续偏低、预期寿命不断提高,抚养比可能会显著上升,从而加大对养老金、医疗和公共财政的压力。

词源 Etymology

dependency 来自 depend(依赖)+ -ency(名词后缀),表示“依赖状态”;ratio 来自拉丁语 ratio,意为“比率/比例”。合起来指“依赖人口与劳动人口的比例”。

相关词 Related Words

文献与著作中的用例 Literary / Notable Works

  • World Population Ageing(United Nations, Department of Economic and Social Affairs)
  • World Development Indicators(World Bank)
  • OECD Pensions at a Glance(OECD)
  • The Economics of Population Aging(David A. Wise 编,Chicago Booth/University of Chicago Press)
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