IMF and World Bank align on stagflationary outlook
The heads of both the IMF and the World Bank have issued explicit warnings that the Iran war is pushing the global economy toward a stagflationary combination of slower growth and higher prices, with the IMF now warning that the damage will be permanent regardless of how the conflict ends, and that escalation could tip the world into recession.
IMF Managing Director Kristalina Georgieva warned in a recent speech that the war will leave "scarring effects" on the global economy, stating that even the "most hopeful scenario" will lead to a growth downgrade and cause a permanent hit to living standards. She added that trade disruption across the Middle East over the past month would lead to lower growth and higher inflation, and noted that "everybody feels the pinch of prices going up." The remarks were delivered as a ceasefire in the conflict threatens to unravel. The IMF has since slashed its global growth forecast, directly attributing the revision to the war in the Middle East. World Bank President Ajay Banga added that he expects some degree of lower growth and higher inflation as a direct consequence of the war, and warned of cascading impacts on the broader global economy.
The IMF also projects a global oil shortfall this year as a result of the conflict, adding a supply-side dimension to its warning that the world is drifting toward a more adverse economic scenario.
The IMF, the International Energy Agency, and the World Bank have issued a joint statement on the economic consequences of the conflict, reflecting an unusually coordinated response from the three major multilateral institutions.
The alignment of the two institutions removes ambiguity about the direction of travel. Portfolio managers must now weigh whether current pricing in rates, equities, and commodities adequately reflects a prolonged period of supply-side pressure, not merely a temporary spike in risk premiums.
Three scenarios, each carrying a cost
In its April 2026 World Economic Outlook, the IMF set out three possible trajectories for the conflict. In the central "reference forecast", which assumes the conflict is short-lived and oil prices normalize to around $82 per barrel, global growth falls from 3.4% last year to 3.1% in 2026, a downgrade of 0.1 percentage points from the fund's previous WEO published last autumn. Under an "adverse scenario", in which oil prices remain near $100 this year before falling back to $75 in 2027, growth would fall to 2.5% and inflation would rise to 5.4%. Under a "severe scenario", involving a lengthier, intensive war that keeps oil above $110 into 2027, global growth would collapse to approximately 2%, a threshold the IMF considers equivalent to a worldwide recession. The fund estimates global growth has fallen below this level only four times since 1980, most recently during the Covid pandemic in 2020 and following the 2008 financial crisis. Under the severe scenario, inflation would exceed 6%, forcing central banks to raise interest rates to prevent entrenched price pressures.
IMF chief economist Pierre-Olivier Gourinchas said: "Of course every day that passes, and every day we have more disruption in energy markets, we are drifting more towards the adverse scenario." He added that "untargeted measures, price caps, subsidies, and similar interventions, are popular. But they are frequently poorly designed and costly."
Oil prices had jumped back above $100 a barrel on Monday after weekend talks between the US and Iran ended in stalemate and as a US blockade of the strait of Hormuz began. On Tuesday, Brent crude was down approximately 4% at around $95 a barrel on hopes of further peace talks.
UK faces sharpest G7 downgrade
The IMF reserved its sharpest downgrade for the UK, cutting its 2026 growth forecast by 0.5 percentage points to 0.8% and warning that inflation would climb to almost 4%, double the government's 2% target. The fund said the UK was particularly exposed to soaring energy prices and entered the conflict in a weaker position after recording only sluggish growth at the end of 2025. Net energy importers and developing nations were identified as facing the biggest hit overall.
The IMF lowered its forecast for US growth in 2026 by 0.1 percentage points, to 2.3%.
UK Chancellor Rachel Reeves, speaking before travelling to Washington for the IMF spring meetings, issued what the British government described as its harshest rebuke yet to President Trump over the conflict. "The war in Iran is not our war, but it will come at a cost to the UK. These are not costs I wanted, but they are costs we will have to respond to." Reeves told the Mirror: "To start a conflict without being clear what the objectives are and not being clear about how you are going to get out of it, I do think that is a folly."
Broader institutional warnings
Analysts at Barron's have described the situation as a crude awakening for the global economy, pointing to energy markets as the primary transmission channel. The Washington Post has reported that the economic impact could worsen specifically for American consumers, while the Wall Street Journal has argued, in a dissenting framing, that the war is reinforcing US economic dominance relative to other major economies. The Financial Times has separately reported that policymakers are actively counting the cost of the conflict as the global economic outlook darkens, with the shock from what analysts are characterising as the largest oil disruption in decades set to cast a shadow over the IMF and World Bank spring meetings.
The IMF has separately flagged that the world is ill-equipped to counter the risks the conflict presents, a judgment that carries particular weight given the limited fiscal and monetary headroom most major economies retain following the post-pandemic tightening cycle. The fund called on central banks to remain vigilant and urged governments considering emergency financial support to focus on temporary and targeted measures, citing unsustainably high debt levels across most countries.
