SUNDAY, 18 OCTOBER 2026GLOBAL AFFAIRS · LONDON
Finance

Canada’s oil shock is turning the next rate decision into a test of inflation persistence

The Bank of Canada expects to raise its inflation forecast sharply as oil and refined-fuel prices remain high. Policymakers must decide whether the shock will fade or spread through wages and domestic prices.

Published 18 October 2026

The Bank of Canada is preparing to lift its quarterly inflation forecast significantly after a sustained rise in crude oil and petroleum-product prices. That changes the question facing its 28 October rate decision from whether inflation has increased to whether the increase will persist without further monetary tightening.

Governor Tiff Macklem said the bank must judge whether inflation is likely to return towards the 2% target on its own or whether higher interest rates are needed to alter its path. The distinction matters because energy shocks affect the economy differently from demand-driven inflation.

Higher fuel prices raise headline inflation directly and increase transport, production and heating costs across the economy. An interest-rate rise cannot create oil or refining capacity. It can, however, restrain demand and reduce the risk that businesses and workers begin setting prices and wages on the assumption that higher inflation will last.

That makes evidence of pass-through crucial. Policymakers will be watching whether price increases remain concentrated in gasoline and energy-intensive goods or broaden into services, wages and inflation expectations. A narrow shock argues for patience; broadening persistence strengthens the case for tightening.

The trade-off is unusually difficult because the same oil shock can weaken growth. Households spending more on fuel have less to spend elsewhere, while businesses face higher costs and tighter financial conditions. Raising rates into that squeeze could deepen the slowdown. Leaving policy unchanged could prove costly if inflation psychology shifts.

The bank’s credibility therefore depends on conditional communication. It must explain which indicators would justify action and which would support restraint, rather than implying that every rise in headline inflation requires the same response. Upcoming inflation data, the Business Outlook Survey and consumer expectations will help reveal whether the shock is changing behaviour.

Canada’s experience is also a warning for other energy-importing economies. When geopolitical disruption keeps oil prices elevated, central banks cannot rely on a quick reversal in headline inflation. Yet responding too aggressively to supply-driven price rises can impose unnecessary damage on employment and investment.

The 28 October decision will be a test of disciplined judgement: distinguishing a painful level effect from a self-sustaining inflation process, while keeping expectations anchored before certainty arrives.

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