Higher female child population linked to lower service exports per GDP
Comparing Age population, age 09, female, interpolated with Commercial service exports (current US$), per unit of GDP across 183 countries, 2025–2025.
- Rank correlation
- -0.63
- Holding size constant
- -0.50
- Countries compared
- 183
- Period
- 2025–2025
What might link these
This could reflect structural economic differences where countries with younger populations invest less in high-value service exports. However, the relationship may also be driven by unmeasured factors like education quality or policy priorities.
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 correlation could be inflated by omitted variables like institutional quality or historical economic patterns.
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.