Economists have tried to assess the extent to which free trade agreements can be considered public goods. First, they deal with a key element of free trade agreements, the system of on-board tribunals, which act as arbiters in international trade disputes. These serve as a clarification of existing statutes and international economic policies, as confirmed by trade agreements.  Free trade agreements, which are free trade zones, are generally outside the multilateral trading system. However, WTO members must inform the secretariat when new free trade agreements are concluded and, in principle, the texts of free trade agreements are reviewed by the Committee on Regional Trade Agreements.  Although a dispute in free trade areas is not the subject of litigation within the WTO`s dispute resolution body, “there is no assurance that WTO panels will comply and reject jurisdiction in a particular case.”  A free trade agreement between two countries or a group of countries can be used to define the rules of relations between countries when it comes to doing business together. Together, these agreements mean that about half of all goods entering the United States enter duty-free, according to the government. The average import duty on industrial products is 2%. The Doha Round would have been the world`s largest trade agreement if the United States and the EU had agreed on a reduction in their agricultural subsidies. As a result of its failure, China has gained ground on the world`s economic front through cost-effective bilateral agreements with countries in Asia, Africa and Latin America. The creation of free trade zones is seen as an exception to the most privileged principle of the World Trade Organization (WTO), since the preferences of the parties to the exclusive granting of a free trade area go beyond their accession obligations.  Although GATT Article XXIV authorizes WTO members to establish free trade zones or to conclude interim agreements necessary for their establishment, there are several conditions relating to free trade zones or interim agreements leading to the creation of free trade zones.
The concept of free trade is the opposite of trade protectionism or economic isolationism. Few issues divide economists and the scope of public opinion as much as free trade.