South Korea's Economic Growth Forecasted at Mid-to-High 2% This Year, but Potential Growth Rate Declines

South Korea's economic growth is expected to reach the mid-to-high 2% range this year, but its potential growth rate, which represents the economy's fundamental capacity, continues to decline. This trend is attributed to the slow resolution of structural economic issues, despite positive signals from exports and financial markets.

According to the OECD on the 7th, South Korea's economic growth rate stood at 1.7% in the first quarter, significantly exceeding the OECD average of 0.4% and outperforming major economies like the United States, Japan, and Germany. Both the OECD and the Bank of Korea project this year's growth rate at 2.6%, and the government is also expected to revise its outlook upward later this month. Trade data for May 2026 shows that exports reached $87.75 billion last month, a 53.2% increase year-on-year, marking the highest May performance on record and the third consecutive month exceeding $80 billion in exports since March.

Conversely, the nation's potential growth rate, the economy's underlying strength, is on a downward trend. The OECD forecasts South Korea's potential growth rate to fall from 1.85% last year to 1.66% this year and 1.52% next year. It is projected to drop further to 1.46% by the fourth quarter of 2026, marking the first instance where the OECD's potential growth forecast falls below 1.5%. The OECD had previously estimated South Korea's potential growth rate at 1.71% for this year and 1.57% for next year in December, but has since lowered these estimates within six months. Potential growth rate signifies the maximum output level achievable without triggering inflation and serves as an indicator of a nation's economic fundamental strength.

Despite an unprecedented boom in the semiconductor industry and a subsequent surge in stock prices, the potential growth rate has worsened. According to the National Statistical Office (KOSIS), the Composite Leading Economic Index cyclical variation for April 2026 rose for six consecutive months to 104.1, the highest since August 2000. The Composite Coincident Economic Index, reflecting current economic conditions, also maintained an upward trend for three consecutive months at 100.2. The gap between the leading and coincident indices in April 2026 stood at 3.9 percentage points, the largest since March 2000. While components of the leading index like the terms of trade and the KOSPI continue to rise due to the semiconductor boom, a decline in the index of retail sales, a component of the coincident index, is seen as a factor widening this discrepancy.

As structural economic limitations become apparent, concerns are rising about South Korea's long-term growth potential, even amidst strong export performance. The decline in potential growth rate suggests that sustained growth will be difficult without improvements in fundamental growth factors such as labor, capital, and total factor productivity.