Sociology
The Demographic Dividend and the Political Economy of Youth Bulges
Quick fact
Countries that experienced a demographic dividend, like South Korea, saw a rapid fertility decline followed by a working-age share peak; according to one estimate, demographic factors contributed up to 30% of East Asia's average annual GDP growth per capita from 1965 to 1990.
Why this is interesting
On a city street, you might notice that in some countries, half the population seems to be under 25, while in others, the crowds are mostly adults. What happens to a society when its young people suddenly become the majority?