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US Agriculture Value Added vs US GDP per Capita

US Agriculture Value Added and US GDP per Capita correlate at r = -0.65 over 25 years (1997–2021), p = 5.0e-4. With the time trend removed, r = -0.27. Holds up after detrending.

Verdict: Holds up after detrending. Statistically significant (p = 5.0e-4) and the association survives trend removal (detrended r = -0.27). Correlation still isn't causation, but this one isn't an obvious artifact.

Pearson r
-0.65
p-value
5.0e-4
Years compared (n)
25 (1997–2021)
95% confidence interval
-0.83 to -0.34
Correlation with the time trend removed
-0.27

Sources

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Correlation does not imply causation. How the verdict is worked out.