Sorry, I misread your initial post. There are a number of factors that can lead to differences including the overall structure of the country’s economy (e.g., being more resource-based), how fiscal stimulus is spent, what supply chains are impacted and the extent, trading relationships). For Canada, a significant factor is the Bank of Canada, which is kept at arm’s length from Government with a focus on monetary policy. They have a lot of interesting publications - and some regular reporting: https://www.bankofcanada.ca/publications/mpr if you’re interested in digging in.