The Grand Illusion: The U.S.-Europe Growth Gap.
So claim Ackerman and Baker.
But this contention is wrong. It is a bad paper and a flawed piece. First, since the GFC, a lot of people who got it right then seem to have gone absolutely nuts since. Ian Welsh, Dean Baker, Paul Krugman, to some extent Barry Ritholtz, and others. They just diverged from any sort of wisdom or probity. Not sure why but they have but it’s a real phenomenon.
This piece and the associated paper is a good example.
The primary mistake the Baker piece and the paper make is that it confuses level comparisons with growth comparisons and then frames that as an issue. However, current-PPP is for comparing countries in the same year, while constant/chained is for comparing real output across countries over time. You can’t just mix them up like that. I mean, you can I guess, if you want to look like a dumbass.
In other words, current-price series use each yearโs prices, while constant-price series are used to measure true volume growth. That’s not any sort of contradiction, as the paper that Baker is discussing claims. That’s how they fucking work. FUCK.
There are numerous other bits of clownery like that, but the basic mistake dooms the paper from the get-go.
Now that I’ve toasted that POS paper, I’ll work on the not-quite-as-moronic Krugman claim.
So, Krugie, you mean to tell me that very large states with a high concentration of tech have higher productivity growth? OMG SO SHOCKING.
BLS says that California represents 14% of national output and ~20% of US productivity growth. Meanwhile, Washington state actually had the highest productivity growth 2007-2024, not California. It’s just a lot smaller.
The other problem with the Krugman boo-shit is conceptual. Composition effects are real economic effects, and are not artificial, nor are they a measurement issue. If the US has more highly productive digital clusters, that is part of US performance in toto and can’t just be broken off as some “fake area.” It’s all one country, baby, no matter if Dog Turd, Mississippi, isn’t benefiting much quite yet from what is happening in California (or Washington).
So much failure and clownery from people who should be smarter.





