Lagarde Warns Eurozone Inflation Shock Will Last Longer as ECB Keeps Rates Higher

14 September 2026 | By Katie Winearls — EBM Newsdesk Analysis

The European Central Bank has warned that the eurozone’s latest inflation shock is proving more persistent than previously expected, raising the prospect that interest rates will remain higher for longer as energy prices continue to feed through the European economy. ECB President Christine Lagarde delivered the warning after the central bank raised its key interest rates by 25 basis points last week, taking the policy rate to 2.5% as it attempts to contain an inflation surge driven largely by the continuing Middle East conflict and its impact on oil and energy markets.

The significance of Lagarde’s message is that Frankfurt is no longer treating the latest energy shock as something that can simply be waited out. The ECB’s September projections put headline inflation at an average 3% this year, 2.5% in 2027 and 2.1% in 2028. The central bank expects inflation to remain above its 2% target for an extended period, with the latest forecasts showing that the return to price stability will take longer than policymakers had hoped. This marks a sharp change from the more comfortable inflation picture seen earlier in the year, when markets were still debating how quickly European borrowing costs could fall.

The immediate problem is energy. Oil prices have risen sharply as the conflict in the Middle East disrupts energy markets, while European gas prices remain vulnerable to supply concerns. That matters because Europe is an energy-importing economy. Higher oil and gas prices do not stop at the petrol pump: they feed into transportation, manufacturing, chemicals, food production, logistics and ultimately services. EBM has previously examined how the ECB’s shift towards tighter policy has created a new European stagflation problem, and the latest developments suggest that the risk has become more rather than less pronounced.

There is also a more uncomfortable issue for Lagarde. Energy inflation is relatively straightforward for a central bank to describe as an external shock, but the danger comes when the shock begins to spread into underlying prices. The ECB’s September projections put inflation excluding food and energy at 2.5% in 2026 and 2.6% in 2027, before easing to 2.3% in 2028. That suggests the problem is no longer confined entirely to the energy component of the inflation basket.

For European companies, the implications are significant. Higher rates increase the cost of corporate borrowing at precisely the moment businesses are already dealing with higher energy, transport and labour costs. Companies with large refinancing requirements face a particularly difficult environment, while investment decisions become harder to justify when the cost of capital is rising and consumer demand remains uncertain. As EBM has previously noted, the European rate outlook is increasingly diverging from the Federal Reserve, creating another complication for companies managing cross-border financing and currency exposure.

The ECB is nevertheless facing a difficult balancing act. Its latest forecasts actually show the eurozone economy performing better than previously expected, with growth projected at 0.9% in 2026, 1.4% in 2027 and 1.5% in 2028. That resilience gives policymakers more room to concentrate on inflation, but it also creates a paradox: stronger demand makes it easier for higher energy costs to become embedded in broader pricing.

Markets are therefore increasingly focused on what comes next. Lagarde has refused to provide a predetermined path for interest rates, stressing that the ECB will respond to incoming data rather than commit itself to a sequence of hikes. Yet investors are already pricing the possibility of further increases as policymakers confront an inflation shock that is proving more durable than expected. Reuters reported that markets were expecting more than three additional rate moves over the following year after the September decision.

The EBM View

The bigger concern for Europe is not simply that inflation is at 3.3% or that rates have reached 2.5%. It is that the economic assumptions underpinning the earlier disinflation story are being rewritten by an external energy shock that central banks cannot directly control. EBM’s earlier analysis of the oil shock hitting the global economy highlighted precisely this problem: monetary policy can suppress demand, but it cannot produce more oil or reopen disrupted supply routes.

That leaves Lagarde with an unenviable choice. Tighten further and risk weakening an economy that is only beginning to regain momentum, or tolerate inflation above target and risk allowing a temporary energy shock to become embedded. For now, Frankfurt appears to believe that the greater danger lies in doing too little. Europe’s rate-cutting era may therefore be further away than markets had expected — and European businesses should prepare accordingly.