Trade Without the Jargon

An export is a good or service a country sells abroad; an import is one it buys from abroad. The trade balance is simply the difference between the two. A country that exports more than it imports runs a surplus; one that imports more runs a deficit. Neither is automatically good or bad; it depends on why.

Underneath trade sits comparative advantage, the idea from Globalisation 101: countries gain by specialising in what they are relatively best at and trading for the rest.

A tariff is a tax on imports. Governments use tariffs to protect domestic producers from foreign competition or to raise revenue. Other trade barriers include quotas (limits on quantity) and regulations that make importing harder.

Tariffs have clear trade-offs. They can help specific domestic producers and workers in the protected industry, and they raise government revenue. But they also raise prices for consumers and for businesses that use imported inputs, and they can invite retaliation from other countries. This is why 'free trade is always good' and 'tariffs always help' are both too simple.

A free trade agreement is a deal between countries to reduce or remove tariffs and barriers between them, making it easier to trade. The aim is to capture more of the gains from specialisation.

Like tariffs, these agreements involve trade-offs. Lower barriers can mean cheaper goods and larger markets, but they can also expose some domestic industries to competition they were previously shielded from. Who gains and who loses depends on the details, which is why real agreements are long and heavily negotiated.