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US Dollar to British Pound vs US Resident Patent Applications

US Dollar to British Pound and US Resident Patent Applications correlate at r = +0.44 over 23 years (1999–2021), p = 0.037. With the time trend removed, r = -0.41. Direction flips without the trend.

Verdict: Direction flips without the trend. The raw correlation is 0.44, but once each series' time trend is removed it becomes -0.41. The year-to-year movements run the opposite way to the long-run trends, so the headline number is misleading.

Pearson r
+0.44
p-value
0.037
Years compared (n)
23 (1999–2021)
95% confidence interval
0.03 to 0.72
Correlation with the time trend removed
-0.41

Sources

Related pairs

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