Central bankers face significant challenges from escalating geopolitical tensions, particularly the conflict involving Iran, which drives up key commodity prices and disrupts monetary policy planning. The Reserve Bank recently raised interest rates, a move largely prompted by surging costs in oil, fertilizers, and helium amid the ongoing war.
Pre-War Inflation Pressures Amplified
Inflation was already building before the conflict intensified, as evidenced by earlier rate hikes in February and March. Low productivity gains meant even moderate growth fueled price rises. The war has exacerbated this, creating turmoil for central banks worldwide.
RBA’s Three Economic Projections
One year after initial post-tariff forecasts, the Reserve Bank outlines three scenarios for Australia’s economy over the next four years, hinging on oil prices and shipping through the Strait of Hormuz. None offer optimistic outlooks.
Baseline Scenario
Oil prices drop swiftly from around $US100 per barrel, with the Strait of Hormuz returning to pre-war levels by Christmas. This leads to a near per-capita recession, rising unemployment, and persistent inflation.
Worse-Case Scenario
If oil holds at $US95 per barrel and the strait normalizes only in early 2027, the economy suffers a $35 billion to $50 billion hit by mid-2028. Inflation climbs to 5.2 percent by June, with unemployment approaching five percent.
Dire Scenario
Should oil surge toward $US145 per barrel, damages reach about $60 billion, pushing an additional 120,000 Australians into unemployment.
Rate hikes aligned with market expectations could accelerate inflation’s decline to 2.4 percent by mid-next year—half a point below February projections—stabilizing within the 2-3 percent target band for at least 12 months. Yet this comes at a steep price: declining real wages, reduced home construction, stalled business expansions, and widespread job losses.
Governor Bullock Warns of Fuel Shortages
Reserve Bank Governor Michele Bullock indicated that interest rates might have remained steady without the war. The bank’s models exclude potential fuel shortages, which could drastically alter the landscape.
“If that were to happen, I think we’re in a very different world, and we’d be looking very differently at the way things are panning out in the economy,” Bullock stated.
Nations already ration fuel amid supply strains, raising risks of measures like odd-even vehicle restrictions, limited fertilizer for farmers, and diesel prioritization for essential industries.

