A restriction on the quantity of a commodity that could be imported is known as

A restriction on the quantity of a commodity that could be imported is known as a quota. It is a type of trade barrier that limits the amount of a specific product that can be imported into a country within a specific period. This restriction is usually put in place by the government of a country to protect domestic industries from foreign competition or to regulate the supply of a particular product. For example, a country may limit the amount of foreign rice that can be imported into the country in a given year. This limit on the quantity of rice that can be imported is a quota. A quota differs from a ban, which completely prohibits the importation of a product into a country, and from a tariff, which is a tax imposed on imported goods.