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US Cereal Yield vs US Exports
US Cereal Yield and US Exports correlate at r = +0.77 over 55 years (1970–2024), p < 0.0001. With the time trend removed, r = -0.28. Likely spurious (shared time trend).
Verdict: Likely spurious (shared time trend). Both series mostly just trend over time. After removing that trend the correlation collapses to -0.28 — the relationship is probably coincidental, not causal.
- Pearson r
- +0.77
- p-value
- < 0.0001
- Years compared (n)
- 55 (1970–2024)
- 95% confidence interval
- 0.63 to 0.86
- Correlation with the time trend removed
- -0.28
Sources
- US Cereal Yield (kg per hectare): World Bank. US Cereal Yield (World Bank indicator AG.YLD.CREL.KG).
- US Exports (% of GDP): World Bank. US Exports (World Bank indicator NE.EXP.GNFS.ZS).
Related pairs
- Atmospheric CO₂ (Mauna Loa) vs US Cereal Yield (r = +0.98)
- US Cereal Yield vs US Population (r = +0.97)
- US Cereal Yield vs US GDP per Capita (r = +0.97)
- US Cereal Yield vs US GDP (current US$) (r = +0.96)
- US Adult Obesity vs US Cereal Yield (r = +0.95)
- US Median Age vs US Cereal Yield (r = +0.95)
Correlation does not imply causation. How the verdict is worked out.