Definition
Free trade is a policy stance under which governments minimize the barriers — tariffs, import quotas, subsidies, and burdensome regulations — that restrict the flow of goods and services between countries. The idea is to let prices and consumer choice, rather than political borders, determine where things are produced and sold.
It rests on the principle of comparative advantage: when each country specializes in what it produces relatively efficiently and trades for the rest, total output rises and consumers gain access to cheaper and more varied goods.
Why it matters
How it works
Under comparative advantage, a country exports goods it can make at a lower opportunity cost and imports the rest. As trade barriers fall, resources shift toward more productive uses, and consumers everywhere pay closer to the global lowest cost. The catch is distribution: while the economy as a whole gains, workers in industries that lose to imports can face job losses and falling wages. This is why free-trade debates focus heavily on adjustment support — retraining, relocation aid, and a stronger safety net — to help the people who bear the concentrated costs of broadly shared gains.