Peru's central bank has an inflation problem it is choosing to ignore

THE CENTRAL Reserve Bank of Peru has been one of Latin America's crown jewels. For more than two decades its policy has delivered inflation near the midpoint of its 1-3% target, earning the bank the sort of credibility that central bankers usually buy with decades of painful discipline. Now that discipline is being tested. Annual inflation in Lima hit 4% in June, for a fourth consecutive month well above the target ceiling. The bank has left its policy rate at 4.25%, insisting the spikes are temporary. It may be right. But the arithmetic is starting to look unfavourable.

The trouble began in March. The rupture of Peru's Camisea natural gas pipeline forced a scramble for alternative fuel supplies, sending energy prices soaring. Monthly consumer prices jumped 2.38% in a single month - the largest surge since December 1993, when Peru was still shaking off the ghost of hyperinflation. The annual rate for Lima climbed to 3.8% that month. Transport inflation alone accelerated to 11.47% year-on-year from 1.95% the month before, as higher fuel costs passed through to public transport fares and logistics costs.

A pipeline repair brought some relief. Inflation eased to 3.9% in May, then ticked back up to 4.01% in June for the Lima metropolitan area, according to Peru's national statistics office, INEI. The national rate sat at 3.57%. Either way, the target range remains out of reach. Food inflation added further pressure, reaching 3.32% year-on-year in June. Food accounts for a large share of the Peruvian consumer basket, particularly for lower-income households, so a persistent rise here matters both for welfare and for the credibility of any forecast that assumes prices will cool quickly.

Governor Julio Velarde has been characteristically calm. In March he attributed the spike to the Camisea pipeline rupture and rising fuel prices and called the shock temporary; the central bank said it expected year-end inflation to settle at 2.4%. The bank held its rate steady at 4.25% in both June and July, sending a signal that patience is the preferred response.

To be sure, there is a case for doing nothing. Supply-driven inflation, if truly temporary, fades when the supply chain heals. Raising rates to fight a pipeline rupture or a geopolitical oil spike would slow growth without addressing the root cause. The Peruvian economy grew 3.5% in the first quarter of 2026, above expectations, buoyed by private spending and favourable terms of trade from commodity demand linked to the AI boom. A premature tightening could needlessly dampen that momentum. The BCRP's historical credibility also gives its forward guidance some force: markets have learned to trust the institution, and trust can do some of the work of interest rates by anchoring expectations.

Yet the bank's forecast looks optimistic to the point of recklessness. Focus Economics, a macroeconomic forecaster, expects end-2026 inflation to reach 4.4%, not 2.4%. The difference between those two numbers is not a matter of statistical noise. It is the difference between a central bank that has kept its word and one whose forecasts look like wishful thinking.

The reason for the divergence is not hard to see. Three supply shocks are converging, and the third one has not fully appeared yet. The first, the Camisea rupture, is healing. The second, higher global oil prices driven by the Middle East conflict, is not. And the third is weather. Peru sits on the Pacific coast of South America, directly in the path of El Niño, the cyclical warming of Pacific sea surface temperatures that disrupts rainfall patterns across the continent. The National Oceanic and Atmospheric Administration has flagged a 63% chance that this year's El Niño will become a particularly strong event, with sea surface temperatures exceeding 2°C above normal. Goldman Sachs predicts such an El Niño could lift global food commodity prices by as much as 15.8%. In Peru, where agriculture is sensitive to both drought and flooding, the impact will be felt in staple food prices, transport disruptions from damaged roads, and potentially in electricity supply if hydroelectric output falls. DB Research, a global macro shop, describes El Niño events as multi-dimensional supply shocks, with causal links to higher food and energy prices alongside broader supply-chain disruptions. None of these features favour a quick return to price stability.

The deeper question is not whether the pipeline is fixed. It is whether the BCRP is treating this as a one-off event when the evidence points to a cluster of overlapping pressures. Supply shocks become embedded in expectations when they last long enough for wage setters and price setters to assume they are the new normal. BBVA Research said in June that there had been no major second-round effects yet. That may still be true. But the window for preventing them is narrowing.

The politics complicate the economics. Peru has just undergone an electoral transition, and the incoming administration is expected to favour business-friendly policies. BBVA Research, an economic adviser, notes that fiscal spending is unlikely to contract - the deficit is projected at 2.1% of GDP in 2026, unchanged from the first quarter - and current spending pressures will persist. That is not a recipe for disinflation. A fiscally expansive environment combined with supply shocks and a central bank that refuses to tighten creates the conditions for inflation expectations to drift. Once they do, bringing them back requires much higher rates.

The BCRP's next policy meeting is scheduled for August. The bank will face a familiar dilemma: act pre-emptively and risk hurting a growth story that is already solid but not spectacular, or hold the line and bet that a cascade of supply shocks resolves itself in the remaining months of the year. If inflation ends 2026 anywhere near the 4%-plus range that independent forecasters project, the bank's credibility will take a dent. Its inflation target band is not arbitrary. It is the instrument by which the bank has kept the sol strong, borrowing costs low and foreign investors willing. A sustained miss would force investors to price a higher risk premium into Peruvian assets, raising the cost of capital precisely when growth needs it.

The better answer is not panic, but a recalibration. If the BCRP cannot cut rates with inflation still outside the target range, it should at least signal that a hike is on the table if August and September data confirm the upward trajectory. Forward guidance is a tool as well as rates. The bank's credibility was built on transparency; defending it requires honesty about the risks, not just comfort about the headline.

That bargain is what is at stake.