Demografia

As The Economist reports this week, many women in the richer parts of Asia have gone on “marriage strike”, preferring the single life to the marital yoke. That is one reason why their fertility rates have fallen. And they are not alone. In 83 countries and territories around the world, according to the United Nations, women will not have enough daughters to replace themselves, unless fertility rates rise. In Hong Kong, for example, a cohort of 1,000 women would be expected to give birth to just 547 daughters, at today’s fertility rates. (That gives Hong Kong a “net reproduction rate” of just 0.547, in the language of demographers.) If nothing changed, those 547 daughters would be succeeded by just 299 daughters of their own, and so on. Mais