What do tariffs mean for the economy? Impact of import tariffs on prices, trade and growth

Background

Import tariffs seem like a reasonable way for a country to protect its economy. But do they really work in practice? How do import tariffs affect the economy of the country that imposes them and the countries that are subject to them, and how should a central bank respond? Let’s look at both the theory and the effects in practice. 

Published: 05 March 2026

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What are tariffs?

Import tariffs, also known as duties, are taxes imposed by a country on goods coming from outside its borders. They make foreign products more expensive, which should serve to protect domestic producers. A simple example is when the United States introduces a tariff on European wine: the price of French or Italian wine in US shops goes up, making consumers more likely to buy a bottle of wine produced in the United States. While that sounds straightforward in theory, things often turn out very differently in practice.

How costs add up

When a country imposes tariffs, imported products become more expensive. Costs rise for companies. They often pass on these higher costs to their customers - at least partially - to protect their profit margins. At the same time, international production chains suffer disruptions, as many goods are made up of components that cross various borders before being sold. If these components become more expensive, production becomes less efficient and productivity falls. The economy then grows more slowly as a result. Moreover, sudden changes in trade policy create uncertainty. Companies that would normally invest or hire new people tend to delay such decisions when future costs and market conditions are unclear. This exacerbates the short-term negative economic effects.

Impact on other countries

The impact is immediate for countries subject to tariffs. As soon as the demand for foreign products drops because of their higher price, exporters see their revenues fall. That means less production, lower profits and declining employment in sectors that depend on trade with the country that has imposed import tariffs. Companies may try to partially absorb the tariffs themselves by capping price increases, but this strategy reduces their profits and may cause them to delay investments. This can unleash a chain reaction: consumers buy less, companies produce less, workers experience uncertainty and investment lags. This entire economy of the exporting country is affected.

Things are complicated in practice

In practice, however, the effects of tariffs are often less clear-cut than the theory suggests. Indeed, companies actively respond to changing circumstances. For instance, many companies built up extra inventory even prior to the announcement of US tariffs to delay the impact of higher costs. Furthermore, trade flows can shift: if the United States imposes higher tariffs on certain countries than on others, international trade will shift to regions with lower tariffs.

Effects on prices and the euro

It is difficult to determine conclusively what the effects on the European Union are. Although the EU faces increased tariffs, it is less affected than some other countries. This is also reflected in the development of inflation and the euro exchange rate. While trade barriers and production chain disruptions can push up inflation, a stronger euro makes imports cheaper. In addition, a country like China, which is facing higher US tariffs than the EU, may focus more on exports to Europe. A greater supply of Chinese or other foreign products could depress prices in Europe. This creates a mixed picture: inflation can both rise and fall, depending on the combination of exchange rate movements, shifts in world trade and how companies deal with cost increases.

What does this mean for policy?

With regard to monetary policy, this means that central banks should respond cautiously to price shocks arising from tariffs. Tariffs often produce a one-off price increase, and the effect on inflation is thus temporary. For this reason, and since tariffs are often associated with a weakening economy, it is generally sensible for central banks to avoid immediate intervention. Raising interest rates to combat a temporary spike in inflation would further slow the economy. However, when tariffs become a factor in protracted geopolitical tensions and cause structurally higher costs, inflation can become more persistent. In that case, central banks should indeed act to stop inflation expectations from rising. The uncertainty surrounding trade policy therefore makes it imperative for policymakers to continually assess how the economy is evolving and respond flexibly to incoming data when necessary

DNB Analysis - How should monetary policy respond to tariffs

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