Can the rich world escape its baby crisis?

From The Economist

Almost every rich country is considering increasing its pro-natal efforts, as are many middle-income ones. In January Mr Macron launched a campaign to “demographically rearm” France (his weapons of choice: fertility tests and maternity leave). Donald Trump has promised “baby bonuses for a new baby boom” if he wins re-election. China, long famous for its one-child policy, now offers incentives ranging from child care to tax breaks in order to encourage parents to have three children. Will such policies be enough to avert demographic catastrophe?