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Home » Transcript: Trade Expert Doug Irwin’s Interview on The David Frum Show

Transcript: Trade Expert Doug Irwin’s Interview on The David Frum Show

Read the full transcript of historian and trade expert Doug Irwin’s interview on The David Frum Show on “How Trump Weaponized World Trade”, on July 30, 2025.

INTRODUCTION

DAVID FRUM: Hello and welcome back to the David Frum Show. I’m David Frum, a staff writer at the Atlantic. My guest today will be Douglas Irwin, who teaches at Dartmouth College and is, in my opinion, America’s leading expert on the history of trade and tariffs in this country.

We’ll be talking directly about many of the myths that are offered by protectionists to justify trade restrictions and tariffs. We’ll be looking at episodes from American economic history and refuting some of the stories that the protectionists tell to justify their otherwise obviously self-harming policies.

Recent Trade Developments

Before we begin though, a few thoughts about some very recent events. I am recording this podcast a few hours after the Trump administration announced a supposedly big deal with the European Union that will see Americans paying much higher tariffs on everything they import from the countries of Europe. We are speaking a few hours before the August 1st deadline for a whole lot more tariffs on everything from all the rest of the world.

Now these measures follow announced so-called trade deals with Japan about which the details are extremely hazy and where the details keep changing and where the Japanese don’t seem at all to have the same idea of what has been agreed, if anything, that the United States does. And shortly after announcements of equally vaporous agreements with Britain and with China, there’s a kind of trade truce in effect with China where the round of tariff increases has stopped rising and rising and rising. But Americans are still paying more for everything because of the Trump tariffs than they were.

That’s a tax paid by the Americans least able to pay taxes. It’s a tax that exempts all of the wealthiest people who spend more of their money on things that aren’t internationally traded services here at home. Remember, the dues at the country club aren’t subject to the tariff. Your rent in your fancy penthouse, that’s not subject to a tariff. But the knives and forks on the dinner tables of ordinary people, those are subject to tariffs.

So we are seeing also a slowdown in the American economy beginning about April, when the Trump tariffs were announced. The growth projections for the United States economy have been slowing. We’re not in a recession yet, but this year is obviously shaping up to be much less prosperous than people expected at the beginning of the year.

What Tariffs Don’t Do

I want to talk a little bit about what the Trump tariffs do and what the Trump tariffs do not do. Let me start with what they do not do.

Tariffs are advertised as a way to increase your country’s manufacturing. What you do is you put a tax on all manufacturers from other countries that makes those other manufacturers more expensive. And therefore your manufacturers are more competitive. Not only that, better still, your manufacturers can increase their prices because they’re shielded from competition. That makes them more profitable. So they can afford to hire more people and put out more goods.

That’s the theory. That by shielding your domestic industry from competition, you will be able to produce more and therefore export more. And you will fix this trade balance that the Trump people are so upset about. The trade balance being the difference between what you import and what you export.

None of this is true, and any economist of any merit will agree.

What Tariffs Actually Do

Here’s what tariffs actually do. First, they hurt your manufacturing. Remember, every manufactured good has inputs in it. Every product is an input into the next product. What tariffs do is they raise the price of all your inputs.

So the Trump people say, “We have to bring back American shipbuilding.” Oh, yeah, we’ve increased the price of steel. “We have to bring back American automobiles.” Oh, yeah, we’ve increased the price of aluminum, of glass and electronic components. Everything they are promising America will make more of is going to be made of things that are more expensive and often a lot more expensive. Some of these tariffs are in the vicinity of 50%.

And so what you’ll find is even if the tariff is sufficient to protect the American product, it can’t be sold to the rest of the world. The American ship, made out of high cost American steel will not be able to compete on world markets with the South Korean ship or the Chinese ship. America’s share of America’s manufacturing exports will go down, not up. And by losing export markets, America will see its manufacturing actually tend to shrivel rather than to grow.

The Soybean Example

The Trump people say it’ll fix the trade balance. That is, we’ll import less and export more. Well, that’s not true either. We won’t export more even of non-industrial goods because other countries will retaliate.

You know, before Donald Trump became president the first time, the United States was the world’s largest exporter of soybeans. Trump imposed tariffs on China. They retaliated by switching their soybean purchases from the United States to Brazil and Argentina. And America’s share of the world’s soybean market collapsed. America is now far behind Brazil as a soybean producer and exporter.

During the 2024 Trump election campaign, the Trump people had the nerve to say, “Under Biden, the United States became a net importer of food.” Yeah, that’s true. You know why? Because the Trump tariffs wrecked the export market for American soybeans and other agricultural products. So the United States imported pretty much the same as it always had, but exported less and so became more of a net importer.

Severing International Relations

And that effect on imports is what you see everywhere that tariffs are imposed. What tariffs are doing is making America, severing America from all of its relations, making other countries less willing to buy American goods, and separating the United States from the rest of the world.

You know, they say they advertise this, the tariffs, as a way to check China, but the way you check China is by having friends and allies.