Though this is the Politics forum, I’ll largely try to give a FQ explanation of the general principles.
For purposes of illustration of some points, and since most readers are from the US, let’s consider actions that the US might take, first.
Let’s say that the US puts tariffs on products from Zimbabwe. They buy very little from Zimbabwe so this doesn’t really affect anything. There are tariffs. There isn’t any inflation.
Let’s say that the US puts tariffs on products from China. The average American buys a lot of things from China so a lot of products will start showing up at a higher price. Inflation. That said, if we imagined that Vietnam was also selling very similar products to the US as China was, at relatively similar prices, then that may move the market towards Vietnamese products. It won’t on the other hand, move Americans towards buying American-made products. The cost of labor in the US is so much larger (roughly 10x) than China and Vietnam that the products made in the US are largely completely different products from those produced by China for the US market. The average consumer doesn’t buy airplanes and rockets.
And then let’s say that the US puts tariffs on all products that are non-American. Well then this completely disrupts the ability for the people to find alternate cheaper options. They will continue to buy from China since Vietnam is no cheaper and US prices are way too high and largely only provides specialized, high end products.
Some points to note:
- The number of countries that you target matters.
- The type and quantity of products that are targeted matters.
- The differences in average income between the countries matters.
- The effect of tariffs will vary depending on the above factors.
Now, I’m not too familiar with the average Canadian store shelf but I’d take it as likely that, just like the US, a large portion of consumer products are coming from China, Mexico, Vietnam, and other low-income nations. Putting tariffs on the US is probably not going to have much impact on any of that. Even American products like Coca-Cola are probably produced in Mexico and sent directly to Canada for distribution. Anti-US tariffs wouldn’t have much impact.
That said, an industry like Canadian airlines might be affected as the price of Boeing airplanes will go up. First, the US is likely to tariff foreign aluminum and other materials - making it more expensive for Boeing to build planes - so the planes will already have a markup on them before trying to sell them to Canada. Adding an anti-US tariff on those planes, as well, and Boeing is dead meat on Canadian soil. Airbus suddenly has a lot more interest. Additionally, excess aluminum that’s freed up because Boeing can’t sell planes will get snatched up by Airbus.
I’d expect that Canadian airlines have deals in place with Boeing and a history of working with equipment produced by Boeing. They have special tooling, special expertise, etc. for that line of products. Switching over to Airbus would be costly, in the short run, but eventually that will pass.
Like all businesses, those costs would get passed on to the consumer and so there would still be some amount of inflation - but largely limited to a few smaller sectors of the economy.
Given that the US is, in all sense, purely and only ice picking its own testicles the far greater burden goes to them. Boeing takes a hit, Ford takes a hit, GM takes a hit, Tesla takes a hit, and so on. Canada would prefer that the US stop and spare Canadians from having to shift supply lines and infrastructure over to European products but, in the long run, it’s not so great of an issue. Airbus is a perfectly good company, so are BMW, Jaguar, Range Rover, etc. Cheap products from China and Mexico - which comprise the majority of what consumers see at the shops - are unaffected.
I wouldn’t say that Canada is obligated to help the US self-flagellate but if the US suffers enough harm, quickly and obviously enough, it may provide a sufficient teaching lesson to the American voter.