Do broad tariffs hurt the U.S. economy more than assumed?
Core argument: Under broad 25% tariffs, the authors expect GDP shocks of roughly 5% for Canada and 7% for Mexico, alongside a hit of over 2% of GDP for the United States.
U.S. exceptionalism often has us assuming that an American-made trade war would be worse for the world than it would be for America. It begs reminding that U.S. trade is of much larger relevance for the U.S. economy than it is for the economy of most other countries in the world. Under broad 25% tariffs, we should expect extreme shocks to the GDP of Canada and Mexico (5% and 7%, respectively). We should also expect a very unpleasant jolt to the U.S. economy (of over 2% of GDP), where intermediate goods (like steel) will become more expensive, and export-driven industries take it on the chin. Exhibit 2 – which looks at total goods trade with the U.S. as a percentage of GDP – shows that the U.S. is 3-4 times more exposed than most of its trading partners. As we see it, U.S. companies have at least as much at risk as non-U.S. ones from U.S. tariffs, so we don’t see a reason to retreat from our non-U.S. versus U.S. bet on those grounds.

