# OECD updates global growth and inflation forecasts > Live situation record from CLSTR: https://clstr.news/situations/oecd-global-economic-outlook-and-inflation-forecasts > Updated: 2026-09-26T04:41:06.000Z. Sources: 89. Developments: 4. The OECD has updated its economic outlook, revising global growth projections downward to 2.9% for 2026 and 3% for 2027. This deceleration is attributed to international volatility stemming from geopolitical conflicts in the Middle East and extreme weather events. While investments in semiconductor exports and artificial intelligence data centers continue to help offset energy shocks and support trade, the overall economic momentum is slowing. Inflationary pressures remain a significant concern. Due to persistent energy price increases, the OECD has raised inflation forecasts for 2027 across most major economies. For the G20, inflation is projected to reach 4.1% in 2026 before settling at 3.6% in 2027, a figure 0.5 percentage points higher than previous estimates. In the Eurozone, inflation is expected to be 3% this year and 2.9% in 2027, with the 2026 forecast also revised upward by half a percentage point. Monetary policy responses are expected to vary by region. The OECD predicts a US Federal Reserve interest rate hike in the fourth quarter of 2026, with rates likely remaining between 4% and 4.25% throughout 2027. While the Eurozone is expected to see limited further increases, the Bank of Japan is anticipated to continue its hiking cycle. Recent developments suggest the global economy is demonstrating greater resilience than previously anticipated. Despite disruptions to strategic shipping lanes like the Strait of Hormuz, which impacted energy and commodity supply chains, governments have utilized petroleum reserves and supply diversification to stabilize markets. IMF Managing Director Kristalina Georgieva noted that a 3% growth projection for 2026 is a “notable achievement” given these challenges. Furthermore, the Asian Development Bank has raised its 2026 growth forecast for developing Asia-Pacific nations to 5%, driven by robust private sector investment and artificial intelligence. ## Claims - The OECD trimmed its 2027 global growth forecast by 0.1 percentage points to 3%. (disputed by 14 sources) - The OECD raised its economic growth forecast for Germany to 1.1 percent for both 2026 and 2027. (disputed by 3 sources) - Leading German economic research institutes have significantly raised their growth forecast for Germany to 1.3 percent for this year. (disputed) - The conflict in the Middle East, particularly involving Iran, is a major risk to the global economic outlook. (corroborated by 15 sources) - Investment in artificial intelligence is supporting global trade and economic growth. (corroborated by 12 sources) - 56% of surveyed chief economists expect the global economic outlook to remain stable or improve over the next year. (corroborated by 7 sources) - 97% of chief economists identify geopolitical conflicts as a likely source of uncertainty for the coming year. (corroborated by 7 sources) - Spain's economic growth forecast for 2026 has been revised upward to 2.6%. (corroborated by 7 sources) ## Timeline ### 2026-09-26: OECD projects global economic slowdown through 2027 The OECD projects global GDP growth to slow to 2.9% in 2026 due to geopolitical volatility and climate events, while noting a trend toward corporate tax incentives to stimulate economic activity. 2 sources. https://clstr.news/cluster/oecd-projects-global-economic-slowdown-through-2027 ### 2026-09-23: Global economy faces high inflation and slow growth, OECD and IMF warn The OECD and IMF warn of high global inflation and weak medium-term growth despite economic resilience driven by AI investments and private sector flexibility. 2 sources. https://clstr.news/cluster/global-economy-faces-high-inflation-and-slow-growth-oecd-and-imf-warn ### 2026-09-23: OECD forecasts rising inflation and further interest rate hikes The OECD warns of persistent inflation driven by energy prices, forecasting higher inflation for 2027 and predicting further interest rate hikes by the Fed and other central banks. 4 sources. https://clstr.news/cluster/oecd-forecasts-rising-inflation-and-further-interest-rate-hikes ### 2026-09-21: OECD raises 2026 global growth forecast to 2.9% amid energy and geopolitical risks The OECD has slightly raised its 2026 global growth forecast to 2.9%, noting economic resilience despite Middle East conflict risks, energy price volatility, and the growing influence of AI investment. 82 sources. https://clstr.news/cluster/world-economic-forum-report-forecasts-global-economic-stabilization --- Cite as: OECD updates global growth and inflation forecasts. CLSTR, https://clstr.news/situations/oecd-global-economic-outlook-and-inflation-forecasts