> the steepest decline in births is among the poor, a population with, on average, worse impulse control and more issues with mental health, and since all qualities are at least partly heritable...
Surprisingly, the fertility rate among the affluent does not appear to be nearly as impacted.
Generally, fertility rates are higher among poorer populations compared to wealthier populations. This pattern is observed both at the national level, with poorer countries generally having higher fertility rates than wealthier ones, and at the individual level, with poorer families tending to have more children than wealthier families.
> Generally, fertility rates are higher among poorer populations compared to wealthier populations.
Yes, but they were even higher in the past. Fertility has declined among the poorer classes much more than among higher income classes, probably due to the availability of contraceptives and abortion:
Generally, fertility rates are higher among poorer populations compared to wealthier populations. This pattern is observed both at the national level, with poorer countries generally having higher fertility rates than wealthier ones, and at the individual level, with poorer families tending to have more children than wealthier families.
https://www.stlouisfed.org/on-the-economy/2016/december/link...