It's a sign of wealth and abundance if fertility rates are falling. See Africa and it's still very high rates and every single historic trend line as evidence.
Strongest causation factors are urbanization and female education/employment.
East Asia urbanized faster then the US, also has little to no immigration ... hence populations will shrink quite drastically. China will halve in what, the next 5 decades?
Strongest causation factors are urbanization and female education/employment.
East Asia urbanized faster then the US, also has little to no immigration ... hence populations will shrink quite drastically. China will halve in what, the next 5 decades?