Employment rates are weird bags of demographics and culture (think women’s rate of workforce participation) as well as economics, so I’m not sure how you extract that particular signal.

70 years to restore income levels across any strata is still not plausible: Even godawful economic growth would compound way too much. Maybe relative share of income for some decile? But now we’re back to asking why we should care about that if absolute real incomes are rising.

I guess I have to go find the research.