PARIS, FRANCE / RankWire.AI / – The OECD has increased its forecast for worldwide economic expansion in 2026 to 2.9%. This adjustment comes as the global economy demonstrated greater resilience than initially anticipated. The estimate was previously 2.8% in the organization’s June outlook. Nonetheless, the OECD revised its 2027 growth forecast downward to 3.0% from 3.1%. Continued investments driven by artificial intelligence have remained a key factor supporting production, trade, and overall economic activity. Meanwhile, rising energy costs and inflationary pressures continue to influence major economies significantly.
The September Interim Economic Outlook revealed that global growth decelerated during the first half of 2026. The annualized rate declined to 2.6%, compared with 3.6% during the latter half of 2025. Despite the slowdown, economic performance in many energy-importing and exporting nations exceeded expectations. Factors such as oil inventories, increased output outside the Gulf region, and alternative supply routes played roles in mitigating the energy shock. Additionally, China’s reduced oil demand helped stabilize the global energy market.
The OECD emphasized that technology investment continues to serve as a vital engine of economic support. Exports of semiconductors surged notably in Korea and Japan, while China also recorded increased technology exports. Industrial output linked to technology maintained rapid growth across much of Asia. Similar advances were observed in the United States and several European nations. Consumer confidence improved in advanced economies after May, and unemployment rates stayed low in many regions. However, elevated fuel prices persisted as a challenge to household purchasing power.
US Economy Gains Momentum While Eurozone Remains Weak
Forecasts indicate that the United States will expand by 2.2% in 2026 and 2.1% in 2027. Investments related to artificial intelligence are bolstering economic activity, but sluggish consumer spending and modest growth in real incomes are tempering the overall gains. The euro area’s gross domestic product is expected to grow by 1.0% in both years. High energy prices and increased interest rates continue to restrain activity across the region. Japan’s economy is projected to grow by 0.8% in 2026, then slow slightly to 0.7% in 2027.
China’s economy is predicted to grow 4.5% in 2026 before slowing to 4.2% in 2027. India is expected to expand by 7.1% in fiscal year 2026-27, following 7.8% in the previous year. Growth is forecasted at 6.5% for fiscal year 2027-28. Indonesia’s economy should grow by 5.2% in 2026 and 5.1% in 2027. Mexico’s economy is forecast to increase by 1.5% this year and 1.8% in 2027.
Inflation Climbs in G20 Countries Amid Rising Energy Prices
Inflation remains a key concern within the OECD outlook. Overall inflation across G20 nations is projected at 4.1% in 2026, an increase from 3.4% in 2025. It is expected to decrease to 3.6% in 2027. The advanced economies within the G20 are predicted to record inflation rates of 3.2% this year and 2.6% next year. The United States’ inflation rate is expected to decline from 3.6% in 2026 to 2.6% in 2027. Inflation in the euro area is forecasted at 3.0% and 2.9% respectively.
According to the OECD, rising energy prices have increased household expenses and reignited inflationary pressures across many economies. Yields on long-term government bonds have also grown as public borrowing costs and debt servicing expenses have risen. OECD Secretary-General Mathias Cormann commented that global growth had outperformed expectations, although the economy remains weaker than last year. The organization recommended targeted temporary support measures, sustainable public finance management, and improvements in long-term productivity. It also called on governments to expand workforce skills, diversify energy sources, and promote wider adoption of artificial intelligence.