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US Gross Savings vs US Population

US Gross Savings and US Population correlate at r = -0.71 over 55 years (1970–2024), p < 0.0001. With the time trend removed, r = +0.04. 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 0.04 — the relationship is probably coincidental, not causal.

Pearson r
-0.71
p-value
< 0.0001
Years compared (n)
55 (1970–2024)
95% confidence interval
-0.82 to -0.54
Correlation with the time trend removed
+0.04

Sources

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