[stared]

And it is reflected in numbers. The fertility rate has a non-monotonous relationship with income. It is the middle-income fertility that plummets.

https://x.com/theHauer/status/1222514313723875332/photo/1

From "Population Pyramids Yield Accurate Estimates of Total Fertility Rates", https://link.springer.com/epdf/10.1007/s13524-019-00842-x?sh...