because trade barriers protect domestic industry and jobs. Workers in export industries benefit from trade. Moreover, all workers are consumers and benefit from the expanded market choices and lower prices that trade brings.
The objective of trade protectionism is to protect a nation's vital economic interests such as its key industries, commodities, and employment of workers. Free trade, however, encourages a higher level of domestic consumption of goods and a more efficient use of resources, whether natural, human, or economic
