[marcosdumay]

Yes, employment statistics rarely tell you anything about the quality of the jobs. And when they do tell something, it's the simplest information possible.

But the statistics are selected in a way that if a society maintains a low headline unemployment for a long time, it's correlated to an increase in the quality of the jobs¹. The correlation is still not perfect, and authoritarian countries love to redefine the date so their absolute value changes.

1 - More clearly, a constant low unemployment correlates to a positive derivative in quality. And a constant high unemployment correlates to a negative derivative in quality.