Trade Protocol
Customs duties that a country applies to all its trading partners within the World Trade Organization system ensure that no individual nation is discriminated against. Most favored nation tariffs are the standard rate for imports unless a specific trade agreement allows for a lower figure. This principle of non-discrimination forms the basis of the modern global trading system.
Economic Calculation
Revenue generated from most favored nation tariffs depends on the volume of trade conducted outside of preferential blocks. Importers must use these rates for any goods that do not meet the rules of origin for a free trade agreement. The specific percentage is listed in the national tariff schedule for every possible product category.
Policy Application
Governments adjust most favored nation tariffs to protect domestic industries or to respond to changes in international trade law. While these rates are usually higher than those in a bilateral deal, they provide a predictable maximum for any business looking to enter a new market. A reduction in these duties generally signals a move toward more open trade policies.
Such changes are often implemented over several years to give local producers time to adapt to increased competition from foreign manufacturers.