Female 20-year-old population linked to household spending
Comparing Households and NPISHs Final consumption expenditure (constant 2015 US$) with Age population, age 20, female, interpolated across 170 countries, 2025–2025.
- Rank correlation
- +0.70
- Holding size constant
- -0.56
- Countries compared
- 170
- Period
- 2025–2025
What might link these
A higher proportion of 20-year-old females may correlate with increased demand for goods and services, particularly those relevant to young adults. However, this relationship is not causal and could be influenced by factors like a country's age structure and economic development stage, which are partially controlled for.
Why this is not proof of anything
This is a correlation across countries, not an experiment. It cannot show that either indicator causes the other, and both may simply follow a third thing. The control for population and GDP may not fully account for other demographic or economic factors that drive both indicators.
The second figure above repeats the measurement with national population and income held constant. It is the more conservative number: a relationship that largely disappears there was mostly telling you that larger, richer countries have more of most things.
How this was measured
Both indicators were ranked across every country reporting each, and the two rankings compared — ranks rather than raw values, because a handful of very large countries can otherwise manufacture a relationship on their own. The calculation is arithmetic over figures already published on this site; the commentary above is drafted from the two indicator names and the resulting coefficients.