Sociology
Population Age Structure and the Diffusion of Technological Innovation
Quick fact
In Japan, where over 28% of the population is over 65, adoption of smartphones lagged behind younger, faster-aging South Korea—yet both have similarly high GDP per capita, showing that age structure independently shapes tech diffusion.
Why this is interesting
Why do some countries leap straight to mobile banking while others still struggle with landlines? The answer might lie not in income, but in the age of their citizens.