The world is at a startling demographic milestone. Sometime soon, the global fertility rate will drop below the point needed to keep population constant. It may have already happened.
Fertility is falling almost everywhere, for women across all levels of income, education and labor-force participation. The falling birthrates come with huge implications for the way people live, how economies grow and the standings of the world’s superpowers.
In 2017, when the global fertility rate—a snapshot of how many babies a woman is expected to have over her lifetime—was 2.5, the United Nations thought it would slip to 2.4 in the late 2020s. Yet by 2021, the U.N. concluded, it was already down to 2.3—close to what demographers consider the global replacement rate of about 2.2. The replacement rate, which keeps population stable over time, is 2.1 in rich countries, and slightly higher in developing countries, where fewer girls than boys are born and more mothers die during their childbearing years.
“The demographic winter is coming,” said Jesús Fernández-Villaverde, an economist specializing in demographics at the University of Pennsylvania.
Many government leaders see this as a matter of national urgency. They worry about shrinking workforces, slowing economic growth and underfunded pensions; and the vitality of a society with ever-fewer children. Smaller populations come with diminished global clout, raising questions in the U.S., China and Russia about their long-term standings as superpowers.
Some demographers think the world’s population could start shrinking within four decades—one of the few times it’s happened in history.
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Considering concerns over underfunded pensions and economic stability, should government policies encourage higher birth rates, and if so, what measures would you support or oppose?
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How do you feel about the idea that having fewer children could lead to major global changes, like shifts in economic power and societal structures?
