Tariffs on your allies is a bad idea, these 4 charts show why


German Chancellor Angela Merkel, President Donald Trump, Canadian Prime Minister Justin Trudeau, and French President Emmanuel Macron meet for the G-7 summit in Charlevoix, Canada.

Evan Vucci/AP

Europeans, Canadians and Mexicans buy more American goods and services than anyone else in the world. So why would the Trump administration be willing to start a trade war with the United States’ most important trading partners — as well as some of its oldest allies?

The current dispute started back in March, when the White House proposed tariffs on all imports of steel and aluminum on national security grounds. That led to threats of retaliation. The administration granted temporary exemptions to several key allies, including Canada, Mexico and the European Union. As of May 31, they’ve all expired, and the US government decided not to renew them.


Now the EU, Mexico and Canada are beginning to make good on those threats.

Canadian Prime Minister Justin Trudeau called the tariffs “totally unacceptable” and “an affront” to Canadian soldiers who have served alongside Americans in numerous conflicts.

As an economist who studies international trade, I thought it’d be instructive to explore the trade relationships the US has with each partner to show just how important they are — and what would be the consequences of a full-blown trade war.

Why they’re upset

The Trump administration placed a 25% tariff on steel and 10% tariff on aluminum with the aim of propping up US metals manufacturers.

A tariff is basically a tax on imports that raises the price of foreign company’s products for American consumers, putting imports at a disadvantage to domestic producers.


To see why these three US allies are so upset, one need only look at the biggest suppliers of US metals. Canada dominates, supplying more than a quarter of all US steel, aluminum and iron imports in 2016. More importantly, steel exports to the US make up more than half of total Canadian production.

Chart: The Conversation, CC-BY-ND Source: Calculated from World Integrated Trading System

The EU came second at 14%, while Mexico ranked fifth with 5.4% of US imports. Steel exports to the US also make up more than half of Mexican production.

America’s biggest customers

The EU is the single biggest market for exported US goods, buying $270 billion of American products in 2016, followed closely by Canada and Mexico. By comparison, China buys just $116 billion.

On the flip side, Americans purchase more from those countries than they sell, creating bilateral trade deficits that the president hates— even as most economists say they don’t matter. The US imports $417 billion in goods from the EU, $294 billion from Mexico and $278 billion from Canada.

Chart: The Conversation, CC-BY-ND Source: The International Trade Administration

When the steel tariffs were first proposed in March, the EU, Canada and Mexico all reacted by threatening to retaliate with their own sanctions against some of these products.


So far, only Canada and Mexico have done so. Canada announced dollar-for-dollar tariffs on steel and aluminum, as well as sanctions of 15% to 25% on whiskey, orange juice and other food products. Mexico also slapped tariffs on US steel, as well as various farm products, including pork, cheese, apples, whiskey, cranberries, grapes and canned goods.

Chart: The Conversation, CC-BY-ND Source: EU, Mexican, Canadian governments

While tariffs on these products won’t have much of an impact on the overall US economy, they could be especially painful for particular industries or regions. For example, Mexico is the second-largest consumer of US pig meat, making the industry vulnerable to Mexican tariffs.

And tariffs like those on Kentucky bourbon and motorcycles seem intended to hit key members of Congress where they live — namely, Senate Majority Leader Mitch McConnell of Kentucky and Speaker of the House Paul Ryan of Wisconsin, the home of Harley-Davidson.


Disruption to US-Canada trade could also affect cross-border supply chains that have grown during the NAFTA era. The automotive industry is particularly vulnerable in this regard.

Although the EU hasn’t pulled the trigger on its own tariffs— yet — it recently opened a case at the World Trade Organization, arguing Trump’s tariffs can’t be justified on national security grounds and are no more than “pure protectionism.” A negative judgment at the WTO could result in the US having to compensate aggrieved foreign producers or face broader retaliatory measures.

American consumers will also feel pain

While the purpose of Trump’s tariffs is to shift US steel consumption away from foreign producers and towards domestic producers, Americans will share some of the pain as well.

For example, if automakers have to pay more for the steel used in cars, you’ll see that effect when you visit your local dealer. One estimate put it at an additional $175 per vehicle.

And higher prices for things that require steel or aluminum like cars, planes, construction and appliances can slow the rest of the economy. When President Bush tried a similar tariff in 2001, it was estimated that it cost American consumers $400,000 for each domestic steel job saved.


The reaction of the EU, Canada and Mexico raises the possibility the US is facing down a full-blown trade war — even as it does the same with China. Whether tensions can be turned down before serious harm is done remains to be seen.