Notice though that the FRED blog post does not explain away the discrepancy but merely mitigates it a bit. Note the decoupling still starts in the 70s. The great wealth disparity that exists today started at the same time. I don’t believe this is a coincidence.
"A bit" is imprecise for the adjustment. I'd say more than a bit.
It also suggests that if you dice it up by sector you might get different amounts of decoupling, which makes logical sense given productivity gains aren't equally spread.
Sure. But in general there was no decoupling prior to 1970 and there is now decoupling. There has been wealth extraction from labor. That it is more prominent in some sectors than others is not too relevant in my opinion.
