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 on
The differences between the two countries are even more striking if you look at their average ages. In 1980 China’s median (the age at which half the population is younger, half older) was 22. That is characteristic of a young developing country. It is now 34.5, more like a rich country and not very different from America’s, which is 37. But China is ageing at an unprecedented pace. Because fewer children are being born as larger generations of adults are getting older, its median age will rise to 49 by 2050, nearly nine years more than America at that point. Some cities will be older still. The Shanghai Population and Family Planning Committee says that more than a third of the city’s population will be over 60 by 2020.
This trend will have profound financial and social consequences. Most obviously, it means China will have a bulge of pensioners before it has developed the means of looking after them. Unlike the rest of the developed world, China will grow old before it gets rich. Currently, 8.2% of China’s total population is over 65. The equivalent figure in America is 13%. By 2050, China’s share will be 26%, higher than in America. In the traditional Chinese family, children, especially sons, look after their parents (though this is now changing—see story on next page). But rapid ageing also means China faces what is called the “4-2-1 phenomenon”: each only child is responsible for two parents and four grandparents. Even with high savings rates, it seems unlikely that the younger generation will be able or willing to afford such a burden. So most elderly Chinese will be obliged to rely heavily on social-security pensions.
China's Fertility Rate is displayed in the chart below