South Korea's aging population risks economic decline

South Korea's rapid aging crisis threatens economic stability by 2050

South Korea faces growing economic pressure as its population ages faster than almost any other nation. The median age has jumped from 27 in 1990 to 45 by 2025, driven by record-low birth rates and rising life expectancy. Without policy changes, the country's debt could soar to between 90 and 130 percent of GDP by 2050.

The rapid aging of Korea's population stems from a sharp drop in fertility rates, now the world's lowest at 0.72 in 2023. Factors like high living costs, intense work culture, and delayed marriages have pushed the rate down from 1.6 in the 1990s. At the same time, life expectancy has climbed from 72 to 84 years, accelerating the shift. By comparison, Japan's median age rose more slowly from 37 to 49, while the US went from 33 to 39 over the same period.

As a result, spending on pensions, healthcare, and long-term care is set to reach 30 to 35 percent of GDP by 2050. Each 1 percent decline in population also cuts real consumption by 1.6 percent, adding to economic strain. While current debt remains below 50 percent of GDP, the government risks losing fiscal flexibility without reform. Experts suggest raising extra revenue and cutting inefficient spending to free up funds for essential services. A clearer long-term fiscal plan, including a quantitative debt limit, could stabilise finances. Structural changes, such as boosting AI adoption and labour force participation, may also ease pressure. Further pension reforms are needed to balance sustainability with fair benefits for the elderly.

Korea's aging society and rising debt risks demand urgent action. Without reforms, higher spending on elderly care could squeeze public finances. A mix of fiscal adjustments, technological investment, and pension changes may help secure long-term stability.