The world is undergoing one of the largest demographic changes it has ever seen. About two-thirds of the human population now lives in countries where fertility is not sufficient to replace each generation. The result of this trend is a rapid aging of the workforce in most parts of the world and a shrinking population in some European countries.
Old-Age Dependency Ratio
One way to measure aging is to examine the old-age dependency ratio, which shows the number of working-age individuals (15 to 64 years) relative to the number of elderly individuals (65 years and older). For example, by 2035, the old-age dependency ratio in Italy is expected to rise from 39% to 50%. Greece, Portugal, and Spain are also on a similar path.
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Global Impacts of Demographic Changes
These demographic changes are also emerging in Latin America, especially in countries like Cuba, Puerto Rico, Costa Rica, and Colombia. A few decades ago, these countries had fewer elderly populations compared to Europe, but they are now approaching this benchmark. In some parts of Asia, demographic concerns are even greater; particularly in China, South Korea, Taiwan, and Thailand, where the old-age dependency ratio is expected to increase to 34% by 2035.
In North America, the population continues to grow, and aging occurs more evenly, largely due to immigration. In the United States, the old-age dependency ratio is projected to rise from 28.8% today to about 34% by 2035. Immigration policy will have a significant impact on demographic changes and aging in the country.
This global trend has far-reaching implications and is concerning for many. The International Monetary Fund has clearly stated that in countries where fewer workers are available and labor force participation declines, economic output will decrease. Similarly, there are predictions about pressure on living standards, financial difficulties, and broader social challenges.
However, aging can also create opportunities, especially in communities where their institutions can adapt and make appropriate technological investments. These historical challenges require vigilance, but it should also be noted that some of the consequences of aging are not as bad as they are perceived to be.
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