Geopolitical Conflict Upends Global Interest Rate Expectations
The ongoing war in Iran has fundamentally reshaped the global monetary policy landscape, with investors now anticipating interest rate hikes across advanced economies including Canada, where policymakers were previously expected to maintain a holding pattern. This dramatic shift comes as soaring energy prices threaten to reignite inflationary pressures worldwide.
Bank of Canada Rate Hike Probability Reaches Certainty
Market expectations have undergone a complete reversal, with investors now expressing 100 percent certainty that the Bank of Canada will implement interest rate increases at its final meeting of 2026. Furthermore, probability assessments have surged to more than 50 percent for a September rate hike and exceeded 80 percent for an October increase, according to recent trading data.
"Policy expectations have ratcheted higher across the advanced economies, reflecting a sharp jump in global inflation fears," stated Karl Schamotta, chief currency strategist at Corpay Currency Research, in a recent analytical note.
Energy Price Surge Fuels Inflation Concerns
The primary catalyst for this monetary policy reassessment stems from dramatic increases in global energy prices following the closure of the Iranian-controlled Strait of Hormuz. This critical maritime passage facilitates approximately one-fifth of the world's seaborne oil transportation.
West Texas Intermediate crude, the North American benchmark, and Brent crude, the European standard, both surpassed the psychologically significant threshold of US$100 per barrel recently, representing increases of 50 percent and 45 percent respectively since early March.
These energy price levels haven't been observed since Russia's invasion of Ukraine in 2022, creating renewed inflationary pressures that central banks must now confront.
Global Central Banks Face New Reality
Prior to the outbreak of hostilities in Iran, most market participants anticipated that the Bank of Canada would maintain its current policy rate of 2.5 percent well into the coming year. Similarly, the European Central Bank was expected to hold rates steady, while the Bank of England was considered more likely to implement cuts rather than increases.
This landscape has transformed completely, with mounting speculation that both the European Central Bank and Bank of England may now be compelled to raise interest rates to combat inflationary pressures stemming from the energy crisis.
Economic Consequences Already Materializing
The impact of rising energy costs is already evident in Canadian consumer markets. According to data from Kalibrate Technologies Ltd., which monitors petroleum industry pricing, the average price for a litre of regular gasoline increased to $1.56 from $1.42 in late February.
"The spike in oil prices has rekindled inflation risks and is now threatening global growth outlook," warned Douglas Porter, chief economist at BMO Economics, in a recent research note.
Joe Brusuelas, chief economist at RSM US LLP, emphasized the fundamental importance of energy costs to global industrial systems: "With the Strait of Hormuz effectively closed, the current shock represents a critical supply problem for the oil and natural gas that sustain global industrial operations."
He further noted that the effects of escalating oil prices are already permeating transportation, manufacturing, metals, and food industries worldwide, with rising costs potentially eroding corporate earnings and affecting consumption patterns.
Broader Economic Implications
Schamotta highlighted the dual economic threat posed by sustained high oil prices, noting that levels above US$100 per barrel typically suppress demand while simultaneously increasing borrowing costs, creating a significant "drag on the world economy."
This combination of factors presents central bankers with a complex policy dilemma: how to address resurgent inflation without excessively constraining economic growth during a period of geopolitical uncertainty and supply chain disruption.



