European Economic Performance Data Is Distorted by Flawed Statistical Methods
Source: Seth Ackerman. "European Economies Are Not Stagnating." March 2, 2026. jacobin.com
The Gist
The author argues that reports of Europe's economic decline compared to America are wrong because they rely on bad statistics. When you use the right way to measure and compare economies, Europe and the US have stayed roughly the same size over the past 20 years, not grown apart as commonly claimed.
Conclusion
Claims of European economic stagnation relative to the US are false, based on methodologically flawed constant-price GDP statistics that create artificial divergences between countries over time
Premises
- Two different PPP-converted GDP measurement methods (current-price and constant-price) produce contradictory results about Europe vs US economic performance
- Current-price GDP data shows Europe and US economies have maintained roughly equal size from 2004 to 2024 ($11.9T vs $12.2T in 2004, $28.8T vs $29.2T in 2024)
- Constant-price GDP statistics are constructed by anchoring only the current year to actual PPP data, then extrapolating backwards using national growth rates
- National statistical agencies use inconsistent and subjective methods for measuring price changes, especially quality adjustments for manufactured goods
- Official price statistics for identical tradable goods show implausible variations across countries (mobile phone price declines ranging from -18% to -90% across different nations)
- Each new round of International Comparison Program data reveals dramatic conflicts with trends implied by national price indexes, indicating systematic measurement problems
- The resulting historical data produces absurd conclusions like Italy having 20% higher productivity than the US or the US economy being 30% smaller than Western Europe's in 1990
Assumptions
- Current-price PPP conversions provide more accurate cross-country comparisons than constant-price methods
- Prices of tradable manufactured goods should move similarly across countries in a globalized economy
- Statistical inconsistencies in national measurement methods significantly distort international economic comparisons
- The International Comparison Program's actual price survey data is more reliable than national statistical agencies' growth rate calculations