Since WTO members are required to communicate their free trade agreements to the secretariat, this database is based on the official source of information on free trade agreements (called the WTO-language regional trade agreement). The database allows users to obtain information on trade agreements that are communicated to the WTO by country or theme (goods, services or goods and services). This database provides users with an up-to-date list of all existing agreements, but those that are not notified to the WTO may be lacking. In addition, reports, tables and graphs containing statistics on these agreements, including preferential tariff analysis, are presented.  Like all trade agreements, Mercosur has its problems. Some believe that it has been designed to consolidate the status quo of underdeveloped and rich nations, making it more difficult for the poor to rise up and actually benefit from the agreement`s offers. Others say that extreme class divisions in the Mercosur-induced geographic area can only thrive if it is a trickle down system. Historical trading blocs include the Hanseatic, an economic alliance of northern Europe between the 12th and 17th centuries, and the German Customs Union, founded in 1871 on the German Federation and then by the German Empire. In the 1960s and 1970s, as well as in the 1990s, after the fall of communism, there was a wave of trading blocs. Until 1997, more than 50% of total world trade was carried out within regional trading blocs.  Economist Jeffrey J. Schott of the Peterson Institute for International Economics notes that members of successful trading blocs generally have four common characteristics: similar levels of GNP per capita, geographic proximity, similar or compatible trade regimes, and political commitment to regional organizations.  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 is not the subject of litigation within the WTO`s dispute resolution body, “there is no assurance that WTO panels will comply and refuse to exercise jurisdiction in a particular case.”  The second way of looking at free trade zones as public goods is related to the growing trend of becoming “deeper”. The depth of a free trade area refers to the additional types of structural policies it covers. While older trade agreements are considered more “flat” because they cover fewer areas (for example. B tariffs and quotas), recent agreements cover a number of other areas, ranging from e-commerce services and data relocation. Since transactions between parties to a free trade area are relatively cheaper than transactions with non-parties, free trade zones will be considered conventionally excluded. Now that deep trade agreements will improve the harmonization of legislation and increase trade flows with non-parties, thereby reducing the exclusivity of free trade agreements, next-generation free trade zones will take on essential characteristics for public goods.  Jobs can be created as a result of increased trade between Member States.
It should be noted that with regard to the qualification of the original criteria, there is a difference in treatment between inputs of origin within and outside a free trade area. Inputs originating from a foreign party are normally considered to originate from the other party when they are included in the manufacturing process of that other party. Sometimes the production costs generated by one party are also considered to be those of another party.