A tariff is a tax payable on border traffic of goods from one customs territory to another. This type of activity, which occurs most frequently, is generally referred to as an “import tariff”. Prices are divided into two categories. Specific tariffs are imposed in the form of fixed fees for each unit of imported product; and ad valorem duties, which are imposed at a rate proportional to the value of an imported product. While the primary objective of tariffs is to protect both domestic industry and the jobs generated by it; The government also benefits because the tariffs increase tax revenue. However, nothing is economically responsible at zero sum, since domestic producers gain because the tariff protects them from foreign competitors by increasing the cost of foreign goods; but consumers lose because they have to pay more for certain imports. A subsidy is government financial assistance for a product sold on the market. Generally defined as the differential on the retail price, to make the trade of products more competitive. Subsidies take many forms, including cash donations, low-interest loans, tax breaks, and state equity participation in domestic companies. When applied to the domestic product and to reduce costs (supply-applied subsidies), subsidies help farmers in two ways: they help them compete with cheap foreign imports and help them capture competitive markets. 'export. The main gains are subsidies for domestic products, which increase international competitiveness. A quota is a direct restriction on the quantity of a good that can be transported to and from a country. The restriction is usually enforced by issuing trade licenses or certificates to a group of people or businesses. This authorized trade volume enjoys a particular advantage...... middle of paper ...... anti-dumping processes take place between a state and a private sector, never between states. Private label dumping and state controls. Giving this fact a judicial character, certain steps must be followed in the dumping investigation process, these being covered by the WTO. Administrative trade policies are bureaucratic regulations designed to restrict import levels. Applied to products in their prices (annual statistics, customs assessments, traffic rights, bells, etc.), in their essence (packaging, registers, labeling, formulations, etc.) or their volume (antitrust policies, consumer, market share , etc. .). These are the most feared tools of trade policy, because they lack measurable, quantifiable or debatable criteria in a multilateral framework, specific to each State and measured according to their own pre-established criteria and consolidated in their culture..