This is no longer just a phenomenon in advanced countries. The global ābirth dearthā has spread to developing nations as well. Nearly one-third of the 59 countries with āsub-replacementā fertility rates ā those under 2.1 per woman ā come from the ranks ofdeveloping countries. Several large and important emerging countries, including Iran, Brazil and China, have birthrates lower than the U.S.
In the short run this is good news. It gives these countries an opportunity to leverage their large, youthful workforce and declining percentage of children to drive economic growth. But over the next two or three decades ā by 2030 in Chinaās case Ā ā these economies will be forced to care for growing numbers of elderly and shrinking workforces. For the next generation of Chinese leaders, Deng Xiaopingās rightful concern about overpopulation at the end of the Mao era will shift into a future of eldercare costs, shrinking domestic markets and labor shortages.
This scenario is already a reality in Japan and much of the European continent, including Greece, Spain, Portugal, much of Eastern Europe, Scandinavia and Germany. Adults over the age of 65 make up more than 20% of these countriesā populations ā compared with 15% in the U.S. ā Ā and their numbers could double by 2030,accordingĀ to researchers Emma Chen and Wendell Cox.
In many of these countries, rising debt burdens and shrinking labor markets have already slowed economic growth and suppressed any hope for a major long-term turnaround. The same will happen to even the best-run European economies, just as Ā it has in Japan, whose decades-long growth spurt ended as its workforce began to shrink.
By 2030 the weight of an aging population will strangle whatās left of these economies. Germany, Japan, Italy and Portugal, for example, will all have only two workers for every retiree. The U.S. will fare somewhat better, with closer to three workers per retiree. By 2030 the median ageĀ will also be higher in China and Korea than in the U.S. ThisĀ age difference will grow substantially by 2050, according to theĀ Stanford CenterĀ on Longevity.