“Increasing urbanization means families don’t need as many kids to work the fields. More women are delaying marriage and children for work and education. Economists have also found an association between low fertility and higher incomes. Once a country’s output per person passes $10,000 annually, women tend to give birth to no more than two children.” There are a variety of factors at work, but the bottom line is that, in many countries, people aren’t having enough kids to support healthy economies over the long term. From Bloomberg’s Scott Lanman: A World With Fewer Babies Spells Economic Trouble. “The human race is approaching the point where it’s no longer reproducing enough to expand the global headcount.”