It's not entirely the economic system, other than women no having careers after giving birth. It's more the social system, and the fact that younger women don't want to seem to want to play anymore. Educated women pretty much anywhere in the world tend to have fewer children, fewer still if the economic costs and penalties increase. The government has to decide that children are desired, the social compact has to be rewritten to improve the position of women (from broodmare/housemother to coequal partner) and then the country needs a bit of good luck. There's still 10's of millions of them there, so they have time to piddle about "deciding and choosing" what to do.
Perhaps this is a good example of the downside of social nationalism in a world that intercommunicates so quickly and so effectively?
Perhaps this is a good example of the downside of social nationalism in a world that intercommunicates so quickly and so effectively?