CorrelateAI › Pairs

US Annual Working Hours per Worker vs US Net Migration

US Annual Working Hours per Worker and US Net Migration correlate at r = -0.54 over 64 years (1960–2023), 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
-0.54
p-value
< 0.0001
Years compared (n)
64 (1960–2023)
95% confidence interval
-0.69 to -0.33
Correlation with the time trend removed
+0.28

Sources

Related pairs

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