When you have rapid fall in fertility you have a generation where the dependency ratio is very low. This is the demographic dividend. This is the period you're likely to see the fastest economic growth. If you have a more modest fall in fertility the demographic dividend is more muted and more spread out.
When you have rapid fall in fertility you have a generation where the dependency ratio is very low. This is the demographic dividend. This is the period you're likely to see the fastest economic growth. If you have a more modest fall in fertility the demographic dividend is more muted and more spread out.