Free trade is a trade policy that does not restrict imports or exports. In government, free trade is predominantly advocated by political parties that hold economically liberal positions, while economic nationalist and left-wing political parties generally support protectionism, the opposite of free trade.
Political poster from the British Liberal Party displaying their views on the differences between an economy based on free trade and protectionism. The free-trade shop is shown as full to the brim with customers due to its low prices. The shop based upon protectionism is shown as suffering from high prices and a lack of customers, with animosity between the business owner and the regulator.