Opinion: The ECB’s Hardest Test Will Be Resisting the Temptation to Overreact

Monetary policy in 2026 is shaping up to be a test of nerves at the European Central Bank. The eurozone is grappling with a supply-side energy shock that has pushed headline inflation above three percent, while economic growth has effectively stalled. The temptation to be seen doing something, anything, will be considerable. Resisting that temptation may be the right thing to do.

Central banking lore is full of cautionary tales about supply shocks. The textbook prescription, codified after the inflationary experience of the 1970s, has been to look through the first-round effects of an energy shock while remaining alert to second-round effects through wages and inflation expectations. The challenge has always been to distinguish between the two in real time.

Today’s data offer some comfort and some concern. Core inflation, stripping out volatile food and energy, edged down rather than up in April, suggesting that the underlying inflation dynamics have not yet been contaminated. Wage tracker data and surveys point to easing labour cost pressures rather than acceleration. Longer-term inflation expectations from market-based indicators and from professional forecasters remain anchored near the bank’s two percent target.

At the same time, the cumulative impact of high energy prices, geopolitical uncertainty and a weak external environment is squeezing real incomes and dampening confidence. The eurozone barely grew in the first quarter. A misjudged tightening, layered on top of these headwinds, could push the bloc into an unnecessary recession just as the global trade environment is becoming more hostile.

Christine Lagarde has so far stuck to a script of patience, emphasising data dependence, the meeting-by-meeting approach and the absence of pre-commitment. The Governing Council has held rates rather than acted. That posture has the merit of preserving optionality and the demerit of disappointing those who see hesitation as weakness. In monetary policy, restraint is often the harder course of action.

Some external observers and a minority of policymakers argue for at least a precautionary tightening to anchor expectations and to send a signal of credibility. The risk in that approach is that it inflicts demand damage in pursuit of a problem that has not yet materialised, and that it does so at a moment when fiscal space is constrained and structural reforms are politically difficult.

The wiser path, in this analyst’s view, is to keep the policy rate steady, communicate clearly the conditions under which the bank would act, and let the data speak. If core inflation drifts higher and wage settlements begin to internalise an inflated price outlook, the case for action will become unambiguous. Until then, the most important contribution the bank can make to medium-term price stability may simply be to hold its nerve.