The Globe and Mail reports in its Thursday edition that consumers and businesses are likely to see imminent price cuts for gasoline after the United States and Iran reached a ceasefire deal this week, but other forms of cost relief could take weeks or months to materialize -- and all of it hinges on a lasting truce between the warring factions. The Globe's Mariya Postelnyak and Mark Rendell write that Canadian gas prices are expected to fall around 11 cents to an average of roughly $1.75 a litre by Friday. However, reopening refineries and oil rigs could take months or years, keeping pressure on energy supply chains. Freight operators and insurance companies are unwilling to resume normal operations without clear guarantees of safety. "From a supply chain perspective, until there's certainty and we can see that the large oil tankers, cargo ships that deliver fertilizer, all that can move, we're not going to see prices -- gasoline prices, diesel prices and fuel surcharges -- go back to where they were before," said Fraser Johnson at the Ivey School of Business. In the grocery aisles, costs can be sticky. "Food prices go up much faster than they go down," said Professor Michael von Massow at the University of Guelph.