Global Growth Forecasts Cut as Middle East Conflict Fuels Risks

Major international organizations including the United Nations, the Organisation for Economic Co-operation and Development (OECD), and the International Monetary Fund (IMF) have lowered their global economic growth forecasts, citing escalating geopolitical tensions in the Middle East and resulting turmoil in energy markets. The revised outlook has renewed concerns over a period of slower growth coupled with persistent inflation across the world economy.

International Institutions Downgrade Global Growth Outlook

In its latest Economic Outlook, the OECD reduced its forecast for global economic growth in 2026 to 2.8% from a previous estimate of 2.9%, while projecting growth to recover to 3.1% in 2027. The organization warned that prolonged energy supply disruptions linked to regional conflict could push 2026 global growth down sharply to 2.1%.

The United Nations has also revised its projections downward, forecasting global growth of 2.5% in 2026, compared with 2.7% previously. The figure would represent the weakest expansion since the COVID-19 pandemic. The UN further cut its 2027 growth forecast to 2.8% from 2.9%.

According to the UN, a prolonged closure of the Strait of Hormuz and continued energy supply disruptions could further weaken economic activity while intensifying inflationary pressures, debt burdens, and food security risks. In a more severe scenario where international oil prices rise above $150 per barrel and remain elevated through the end of the year, global growth could slow to 2.1% in 2026 and 2.6% in 2027.

Inflation forecasts have also been revised higher. The UN increased its global inflation projection for this year to 3.9% from 3.1% estimated in January. Developing economies are expected to be hit particularly hard, with average inflation projected at 5.2%, significantly above the earlier forecast of 3.9%.

The IMF likewise lowered its 2026 global growth forecast by 0.2 percentage points to 3.1% during the World Bank Spring Meetings. While the revised estimate remains near historical averages, analysts said the downgrade reflects growing economic headwinds from geopolitical instability. The IMF warned that prolonged conflict and sustained high oil prices could reduce global growth to 2.5% this year while pushing inflation to 5.4%. Under extreme circumstances, global growth could fall as low as 2%.

The World Bank Group, in its East Asia and Pacific Economic Update, projected regional growth in East Asia and the Pacific to slow to 4.2% in 2026 from 5.0% in 2025. The report cited Middle East-related energy shocks, rising trade barriers, increasing global policy uncertainty, and domestic challenges in several economies as the main factors behind the slowdown.

Middle East Conflict Emerges as Key Driver

International institutions broadly identify tensions in the Middle East as the primary factor behind the weaker outlook. The conflict has increased shipping risks through the Strait of Hormuz, contributing to higher energy prices and additional pressure on global supply chains.

The United Nations described the current disruption in energy markets as one of the largest shocks in modern history. It expects international oil prices to remain above $100 per barrel through the middle of the year before gradually easing toward $80 in the second half and declining modestly again in 2027. However, the forecast assumes that energy supply disruptions do not worsen further.

Rising energy costs are generating broader economic effects. Higher oil and gas prices have increased the cost of key industrial inputs such as fertilizers, weighing on business investment. At the same time, elevated energy prices are feeding inflation expectations. If the conflict continues, global inflation could rise by an additional 0.4 percentage points and 1.3 percentage points over the next two years, respectively.

The economic impact is expected to vary significantly across countries. Low-income economies that depend heavily on imported energy and commodities face rising food and fuel costs, currency depreciation, and heightened debt risks. In contrast, energy-exporting nations could see their economic outlooks improve or remain stable. Growth forecasts for China and the United States have been revised only modestly, reinforcing their role as key anchors of global economic stability.

The OECD warned that under a worst-case scenario, prolonged disruptions could push some economies into or close to recession. Such conditions would further complicate policymaking for central banks already balancing weak growth against persistent inflation pressures.

Beyond the immediate impact, the conflict has exposed structural vulnerabilities in the global economy, highlighting the risks associated with reliance on critical supply bottlenecks. Economists increasingly emphasize the urgency of strengthening supply chain resilience and diversifying energy sources. Meanwhile, higher defense spending in response to security concerns may provide short-term economic support but could divert resources away from social investment and long-term development, potentially weakening future growth prospects.

Rate Hike Expectations Strengthen in the United States, Europe and Japan

Persistent conflict-related inflation pressures have also altered expectations for monetary policy in major economies, increasing the likelihood of further interest rate increases in the United States, Europe, and Japan.

In the euro zone, retail sales fell 0.4% month-on-month in April, weaker than market expectations for a 0.3% decline. Annual inflation accelerated to 3.2% in May from 3.0% in April and 1.9% in February, while core inflation also edged higher, indicating that energy costs are beginning to spread into broader price categories. Consumer confidence remained near levels last seen during the 2008 global financial crisis.

Economists said consumer sentiment has deteriorated steadily since the outbreak of the Middle East conflict, and combined with weak business surveys, raises the possibility of a contraction in euro zone economic activity during the second quarter. Markets broadly expect the European Central Bank to raise interest rates this month and potentially again in July, although weakening household spending may limit the scope for aggressive tightening.

In Japan, expectations for a rate increase at the Bank of Japan's upcoming policy meeting have strengthened. Bank of Japan Governor Kazuo Ueda recently stated that second-round inflation effects stemming from higher oil prices are more likely to sustain underlying inflation, making them an important consideration for policy decisions. The yen has become one of the world's weakest major currencies, and repeated interventions have struggled to prevent further depreciation.

In the United States, markets generally expect the Federal Reserve to leave rates unchanged in June, but recent comments from Fed officials have fueled expectations of additional tightening later in the year. The Federal Reserve's June 3 Beige Book reported slight-to-moderate economic growth across most regions, although consumer spending trends were mixed and inflationary pressures were increasing. The report identified energy costs associated with the Middle East conflict as a major source of inflation, with impacts extending to shipping, packaging, groceries, and fertilizer prices.

The United Nations said many central banks may be forced to maintain elevated interest rates for longer than previously anticipated in order to contain inflation, implying a further tightening of global financial conditions.

Rising Debt Adds to Global Vulnerability

According to IMF data, the global government debt-to-GDP ratio approached 94% in 2025 and is projected to exceed 100% by 2029. The trend suggests that highly indebted economies could face growing repayment pressures and increased risks of capital outflows as borrowing costs remain elevated.

With growth forecasts being revised lower, inflation risks rising, and monetary conditions tightening, policymakers face mounting challenges in navigating an increasingly uncertain global economic environment shaped by geopolitical conflict and energy market instability.