PARIS, FRANCE / RankWire.AI / – According to the OECD, the forecast for worldwide economic expansion in 2026 has been upgraded to 2.9%, reflecting a more resilient global economy than previously anticipated. This revised estimate represents an increase from 2.8%, as initially projected in the organization’s June outlook. Nonetheless, the OECD has lowered its 2027 growth forecast to 3.0% from 3.1%. The ongoing strong investment in artificial intelligence continues to bolster production, trade, and overall economic activity. However, elevated energy prices and inflationary pressures remain significant challenges across key economies.
The September Interim Economic Outlook highlighted a slowdown in global growth during the first half of 2026. The annualized growth rate decreased to 2.6%, down from 3.6% in the latter half of 2025. Despite this, economic activity in many energy-importing and energy-exporting nations outperformed expectations. Limited energy shocks were facilitated by oil inventories, increased production outside the Gulf, and alternative supply channels. Additionally, reduced oil demand from China contributed to balancing global energy markets.
The OECD emphasized that technology investment continues to serve as a critical driver of economic support. Exports of semiconductors surged notably in Korea and Japan, while China also experienced increased technology exports. Industrial output related to technological advancements maintained rapid growth across much of Asia. Parallel growth was observed in the United States and several European countries. Consumer confidence showed improvement in advanced economies since May, and unemployment rates remained low in many nations. However, rising fuel costs persisted as a pressure point on household purchasing power.
US Economy Gains Momentum While Eurozone Remains Moderately Stagnant
Forecasts indicate that the United States will expand by 2.2% in 2026 and 2.1% in 2027. Investment related to AI continues to underpin activity, though slower consumer spending and weaker real income growth are restricting overall gains. The euro area’s GDP is expected to increase by 1.0% in both years, weighed down by higher energy costs and interest rates. Japan’s economy is projected to grow 0.8% in 2026 before decelerating slightly to 0.7% in 2027.
China’s economic growth is anticipated to reach 4.5% in 2026 and then slow to 4.2% in 2027. India is forecasted to expand by 7.1% during the 2026-27 fiscal year, following a 7.8% increase in the previous fiscal year. Growth for 2027-28 is estimated at 6.5%. Indonesia’s economy is expected to grow 5.2% in 2026 and 5.1% in 2027, while Mexico’s economy is predicted to expand 1.5% this year and 1.8% next year.
G20 Inflation Rises as Energy Costs Continue to Drive Price Increases
Inflation remains a prominent concern in the OECD outlook. Headline inflation across G20 economies is projected to be 4.1% in 2026, an increase from 3.4% in 2025, with a forecasted decrease to 3.6% in 2027. The advanced economies within the G20 are expected to see inflation rates of 3.2% this year and 2.6% in 2027. Specifically, the United States inflation rate is forecasted to decline from 3.6% in 2026 to 2.6% in 2027, while the euro area’s inflation is expected at 3.0% and 2.9%, respectively.
The OECD highlighted that rising energy prices have increased household expenses and reignited inflationary pressures in numerous economies. Yields on long-term government bonds have also climbed as public borrowing and debt servicing costs rise. OECD Secretary-General Mathias Cormann noted that global growth has held up better than initially expected, despite the economy being weaker than last year. The organization recommended targeted temporary support measures, sustainable public finances, and enhanced long-term productivity. It also called on governments to expand workforce skills, diversify energy sources, and promote broader adoption of artificial intelligence.