The global economy is entering a difficult new phase: growth is holding up, but the conditions supporting it are becoming more fragile. An expanding war involving the United States and Iran has disrupted fuel supplies and placed the Strait of Hormuz—a route central to global energy trade—at the center of the economic outlook. At the same time, governments are carrying heavy debt burdens, while an artificial-intelligence investment boom is supporting activity but raising questions about financial stability and future productivity.
The immediate transmission mechanism is energy. French energy-price inflation reached 18.8% in September, up from 14.3% a month earlier, according to Le Monde. The report said concerns over fuel supplies from the Middle East, including disruption around Hormuz, were already feeding into markets and lifting borrowing costs. Higher energy prices squeeze households, increase companies’ costs and make it harder for central banks to reduce interest rates.
That combination creates a policy dilemma. Tightening monetary policy can restrain second-round inflation, but it also weakens investment and consumption. Supporting households through subsidies or tax cuts may soften the shock, yet it can add to deficits at a time when investors are already demanding higher returns from governments. Le Monde reported that French interest rates approached 5% in early October as bond yields rose across markets.
Why the shock matters beyond oil
Energy disruptions do not remain confined to the energy sector. Transport, chemicals, food production and manufacturing all depend on fuel or gas, while poorer economies generally have less fiscal room to absorb higher import bills. A prolonged interruption at Hormuz could therefore widen the gap between countries able to subsidize energy and those forced to cut consumption or redirect spending.
The political consequences could be as significant as the economic ones. Governments face pressure to protect living standards, but measures that lower prices artificially can encourage demand and discourage conservation. Conversely, allowing prices to rise quickly can intensify public anger and increase support for parties promising intervention. The result may be more fragmented energy policy, with countries seeking national stockpiles, new suppliers and longer-term contracts rather than relying on integrated markets.
There is also a less visible constraint: public debt. IMF Managing Director Kristalina Georgieva warned that persistent energy costs, record government debt and risks from the AI investment boom threaten global growth, according to RTÉ. Debt makes governments more vulnerable to interest-rate increases because a larger share of tax revenue is required to service existing obligations. It also limits the ability to respond to a new emergency with broad fiscal support.
The AI offset—and its limits
Artificial intelligence is providing a counterweight. An IMF forecast reported by DD News projected global growth of 3.3% in 2026, with U.S. growth at 2.4%, partly reflecting heavy investment in data centers, chips and electricity infrastructure. Global inflation was forecast to fall from 4.1% in 2025 to 3.8% in 2026 and 3.4% in 2027.
Those figures suggest that the world economy is not yet entering a generalized downturn. But AI’s contribution is uneven and carries risks. Investment can raise demand before productivity gains appear, encouraging excessive borrowing or overbuilding. If expected returns fail to materialize, a reversal in technology valuations could weaken business confidence and expose lenders. Georgieva said IMF research indicates that AI, if deployed effectively, could add roughly half a percentage point to annual global growth, but she also warned of downside risks.
The debate is therefore not whether AI is economically important, but who captures its gains and who bears its costs. Data-center construction may benefit technology firms, utilities and regions with abundant power, while communities elsewhere face pressure on electricity supplies and infrastructure. A separate analysis cited by Le Monde warned that emissions from the AI sector could become a serious concern by 2030.
What comes next
The next phase will depend on duration rather than headlines alone. A short energy disruption could produce a temporary inflation spike. A prolonged closure or threat to Hormuz would be more damaging, forcing central banks to choose between stabilizing prices and protecting growth. Governments will likely accelerate diversification, but new pipelines, terminals, renewables and transmission networks require years, not weeks.
The IMF’s full October 2026 World Economic Outlook is scheduled for publication on October 13 during the institution’s annual meetings in Bangkok, according to the IMF. Its central test will be whether resilient growth can survive simultaneous energy, debt and technology shocks. For policymakers, the answer will depend on credible fiscal plans, targeted—not unlimited—support for households, and investment that expands energy capacity rather than merely shifting scarcity from one sector to another.