Higher services share in GDP often aligns with higher per capita GDP
Comparing Services, value added (% of GDP) with GDP (constant 2015 US$), per capita across 201 countries, 2015–2025.
- Rank correlation
- +0.64
- Holding size constant
- +0.52
- Countries compared
- 201
- Period
- 2015–2025
What might link these
Wealthier countries tend to have larger service sectors (e.g., finance, tech) due to higher demand for specialized services. A careful reader should note that correlation does not imply causation—other factors like education or institutions may drive both.
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 partial correlation remains strong, but unmeasured confounders (e.g., technological advancement) could still distort the relationship.
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.