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US Dollar to Euro vs US Annual Working Hours per Worker

US Dollar to Euro and US Annual Working Hours per Worker correlate at r = +0.60 over 25 years (1999–2023), p = 0.0015. With the time trend removed, r = +0.74. Holds up after detrending.

Verdict: Holds up after detrending. Statistically significant (p = 0.0015) and the association survives trend removal (detrended r = 0.74). Correlation still isn't causation, but this one isn't an obvious artifact.

Pearson r
+0.60
p-value
0.0015
Years compared (n)
25 (1999–2023)
95% confidence interval
0.27 to 0.80
Correlation with the time trend removed
+0.74

Sources

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