Demonstration article

This sample was written to show how Northstar Briefing presents journalism. It does not report real events and contains no real quotations, data or named sources.

A tariff is a tax on imports. Legally, it is usually paid by the importer when goods clear customs. Economically, the question of who bears it — the incidence of the tax — is quite different. The importer may pass the cost on to customers, absorb it in lower margins, or push foreign suppliers to cut their prices. Most often, the burden is shared.

What decides the split

The key concept is elasticity: how sensitive buyers and sellers are to price changes. If domestic buyers have few alternatives and must keep purchasing, importers can raise prices with little loss of sales, and consumers bear much of the cost. If buyers can easily switch to domestic products or imports from untaxed countries, importers find it harder to pass on the tariff, and foreign exporters may have to lower their prices to stay competitive.

Market power matters on the supply side too. A foreign producer with many alternative markets can refuse to cut prices and simply sell elsewhere. One heavily dependent on the taxing country may accept lower margins to preserve its customers. Large importing nations can therefore sometimes shift part of a tariff onto foreign producers — a gain economists call an improvement in the terms of trade — though at the cost of reduced trade and possible retaliation.

The importer writes the cheque at the border. The cost then travels down the supply chain until it finds someone who cannot pass it on.

Beyond the border price

Pass-through does not stop at the imported good. Domestic producers competing with imports may raise their own prices, because the tariff shields them from competition. Firms that use imported components face higher costs, which can ripple through to finished products made at home. Exchange rates can also move in response, partly offsetting or amplifying the effect.

Factors that shape tariff pass-through

How easily buyers can switch to other suppliers

The pricing power of foreign exporters

Whether the tariff is expected to be temporary or permanent

Movements in the exchange rate

Retailers' willingness to absorb costs to protect market share

Timing is important. In the short run, retailers may hold prices steady, drawing down inventories bought before the tariff or absorbing costs to avoid losing customers. Over time, as contracts are renegotiated and stocks run down, more of the cost tends to reach shelf prices. Expectations matter as well: firms are more likely to pass on a tariff they believe is permanent than one they expect to be reversed.

Why it matters for policy

Understanding pass-through helps explain the trade-offs in tariff policy. Governments may impose duties to protect strategic industries, respond to unfair practices or gain bargaining leverage. But to the extent that tariffs raise domestic prices, they act like a consumption tax, often weighing more heavily on lower-income households, which spend a larger share of their budgets on goods. Central banks also watch tariff pass-through closely, since it can push up measured inflation even when underlying demand is unchanged.