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US Annual Working Hours per Worker vs US GDP per Capita

US Annual Working Hours per Worker and US GDP per Capita correlate at r = -0.75 over 64 years (1960–2023), p < 0.0001. With the time trend removed, r = +0.48. Direction flips without the trend.

Verdict: Direction flips without the trend. The raw correlation is -0.75, but once each series' time trend is removed it becomes 0.48. The year-to-year movements run the opposite way to the long-run trends, so the headline number is misleading.

Pearson r
-0.75
p-value
< 0.0001
Years compared (n)
64 (1960–2023)
95% confidence interval
-0.84 to -0.62
Correlation with the time trend removed
+0.48

Sources

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