Demography: China’s Achilles Heel
LIKE the hero of “The Iliad”, China can seem invincible. In 2010 it overtook America in terms of manufactured output, energy use and car sales. Its military spending has been growing in nominal terms by an average of 16% each year for the past 20 years. According to the IMF, China will overtake America as the world’s largest economy (at purchasing-power parity) in 2017. But when Thetis, Achilles’s mother, dipped her baby in the river Styx to give him the gift of invulnerability, she had to hold him somewhere. Alongside the other many problems it faces, China too has its deadly point of unseen weakness: demography.
Over the past 30 years, China’s total fertility rate—the number of children a woman can expect to have during her lifetime—has fallen from 2.6, well above the rate needed to hold a population steady, to 1.56, well below that rate (see table). Because very low fertility can become self-reinforcing, with children of one-child families wanting only one child themselves, China now probably faces a long period of ultra-low fertility, regardless of what happens to its one-child policy.
The government has made small adjustments to the policy (notably by allowing an only child who is married to another only child to have more than one child) and may adapt it further. But for now it is firmly in place, and very low fertility rates still prevail, especially in the richest parts of the country. Shanghai reported fertility of just 0.6 in 2010—probably the lowest level anywhere in the world. According to the UN’s population division, the nationwide fertility rate will continue to decline, reaching 1.51 in 2015-20. In contrast, America’s fertility rate is 2.08 and rising.The difference between 1.56 and 2.08 does not sound large. But over the long term it has a huge impact on society. Between now and 2050 China’s population will fall slightly, from 1.34 billion in 2010 to just under 1.3 billion in 2050. This assumes that fertility starts to recover. If it stays low, the population will dip below 1 billion by 2060. In contrast, America’s population is set to rise by 30% in the next 40 years. China will hit its peak population in 2026. No one knows when America will hit its population peak.