Tariff
A tariff is a tax on imports or exports between sovereign states. It is a form of regulation of foreign trade. It is a policy that taxes foreign products to encourage or protect domestic industry. It helps limit trade deficits. The tariff is historically used to protect infant industries and to allow import substitution industrialization.
Tariff in United States history
Higher tariffs were adopted during and after the War of 1812, when nationalists such as Henry Clay and John C. Calhoun saw the need for more federal income and more industry. In wartime, they declared, having a home industry was a necessity to avoid shortages. Likewise owners of the small new factories that were springing up in the northeast to mass-produce boots, hats, nails and other common items wanted higher tariffs that would significantly protect them when the more efficient British producers returned after the war ended. A 10% discount on the customs tax was offered on items imported in American ships, so that the American merchant marine would be supported.