GNI per GDP shows a moderate link with primary education pupils per GDP.
Comparing GNI (current LCU), per unit of GDP with Primary education, pupils, per unit of GDP across 189 countries, 2011–2025.
- Rank correlation
- +0.62
- Holding size constant
- +0.49
- Countries compared
- 189
- Period
- 2011–2025
What might link these
Higher national income, relative to GDP, might allow for greater investment in education, leading to more pupils. Conversely, a robust primary education system could contribute to a more skilled workforce, potentially boosting GNI relative to GDP. However, both indicators are normalized by GDP, which itself is a measure of economic activity, and this normalization could be creating or amplifying the observed link.
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 relationship is normalized by GDP, suggesting the link might be an artifact of this shared denominator rather than a direct or independent association.
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.