TOKYO/SEOUL — In a historic shift in East Asian economic dynamics, Japan’s economy grew faster than South Korea’s last year, marking the first time the Japanese archipelago has outpaced its neighbor since the depths of the 1997-98 Asian Financial Crisis.

According to preliminary data released by the Cabinet Office of Japan on February 16, Japan's real Gross Domestic Product (GDP) expanded by 1.1% in 2025. This figure narrowly edges out South Korea’s growth rate of 1.0%, as reported by the Bank of Korea.

A Tale of Two Trajectories
The 0.1 percentage point gap carries significant symbolic weight. For nearly three decades, South Korea was viewed as the "tiger economy" consistently outrunning a stagnating Japan. The last time Japan held the growth lead was in 1998, a year when Korea was reeling from a massive liquidity crisis and recorded a contraction of -4.9%.

Japan's Recovery Path: Japan’s 1.1% growth represents a notable rebound from 2024, when the economy contracted by -0.2%. The breakdown of Japan's recent economic performance shows a volatile but upward trend:

2021: 3.6% (Post-pandemic recovery)
2022: 1.3%
2023: 0.7%
2024: -0.2%
2025: 1.1% (Current preliminary estimate)

In nominal terms—which does not adjust for inflation—Japan's GDP reached 662.8 trillion yen (approximately $4.4 trillion USD), a robust 4.5% increase from the previous year. This surge in nominal value reflects the broader inflationary pressures and the weakening yen that have characterized the Japanese economy recently.

Quarterly Fluctuations and Revisions
Despite the annual growth, Japan's economic engine showed signs of sputtering in the latter half of the year. The quarterly breakdown reveals a strong start followed by a dip:

Q1: 0.3%
Q2: 0.5%
Q3: -0.7% (Negative growth)
Q4: 0.1% (Slight recovery)

Economists caution that these figures are "preliminary estimates." History suggests that final figures can shift. In 2023, early data suggested Japan might overtake Korea, but final revisions eventually placed Korea back in the lead. Analysts will be closely watching the "revised" data releases in the coming months to see if this 27-year reversal holds firm.

Looking Ahead: A Temporary Flip?
While the 2025 data offers a moment of celebration for Tokyo, international organizations suggest that the "South Korea-Japan Reversal" might be short-lived.

The Organization for Economic Cooperation and Development (OECD) released a forecast in December suggesting a divergence in 2026. The OECD predicts:

Japan: Growth is expected to slow to 0.5% in 2026 as the effects of previous stimulus wane and structural demographic challenges persist.
South Korea: Growth is projected to rebound to 2.2% in 2026, driven by a recovery in global semiconductor demand and stabilizing domestic consumption.

Structural Implications
The narrowing gap between the two nations highlights broader structural shifts. South Korea is currently grappling with "low growth entrenchment" caused by a rapidly aging population and a heavy reliance on a volatile export market. Meanwhile, Japan has benefited from a tourism boom and a corporate sector that has finally begun to raise wages and prices after decades of deflation.

For now, the 2025 results serve as a wake-up call for Seoul. The "growth reversal" underscores the need for structural reforms in South Korea to prevent a permanent slide into the "low-growth trap" that Japan has occupied for much of the 21st century.