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by algo_trader 308 days ago
> but I wonder if it's more correlation than causation.

Fertility fall in rural Africa is far faster than its rate of urbanization

As a quick primer. falling births seem to correlate/caused by:

a. increasing urbanization b. increasing atheism c. increasing women empowerment/education d. increasing incomes

These factors re-enforce each other, and are scale free (we see the same effect at $1/day, $10/day, $100/day etc)