Some cool data from the World Bank on the decline of the number of children the average woman has by country through time can be found here (Fertility Rate + Life Expectancy – generally more kids where you don’t expect to live very long) and here (Fertility Rate + Life Expectancy + Income Level – generally more kids where you have low income). Click on the slider to show data moving through time. You can adjust which countries are highlighted by using the check boxes to the left.
Many developing countries (outside of Africa) are showing steep declines in the number of children that are being born. Will these countries grow old before they grow rich enough to support all the elderly?