2024 · GS Paper 1 · Q7 · 10 marks
What is the concept of a 'demographic Winter'? Is the world moving towards such a situation? Elaborate.
In short
A demographic winter is a long spell of below-replacement fertility that leaves populations older and shrinking, and the world is moving towards it unevenly. The UN World Population Prospects 2024 finds more than half of all countries already below the replacement level of 2.1.
Model answer
Ghissu Editorial · Verified 4 Oct 2026 · 284 words
Sub-replacement fertility
South Korea's fertility of 0.72 in 2023 was the lowest ever recorded, and in Japan deaths have outnumbered births since the mid-2000s.
Ageing and shrinking workforce
An inverted age pyramid raises the old-age dependency ratio, causing labour shortages and strained pensions and care.
Social roots
Late marriage, costly housing and childcare, and women's double burden of paid work and care drive the choice of fewer children.
Global slide
UN World Population Prospects 2024 puts global fertility near 2.25, with more than half of all countries below replacement and a population peak around the mid-2080s.
Already in winter
China's population has fallen every year since 2022, and Italy and Spain face shrinking cohorts despite cash incentives for births.
India approaching
Fertility fell to 2.0 in NFHS-5 (2019-21), and the UNFPA India Ageing Report 2023 projects over 20% elderly by 2050.
Uneven spread
Sub-Saharan Africa, with fertility above four, will supply over half of world population growth to 2050.
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Question from the official UPSC Civil Services (Main) Examination 2024 paper. Answer written by Ghissu's engine and checked against our editorial standards. Found an error? Tell us and we correct it within 48 hours.