The second way of looking at free trade agreements as public goods is related to the growing trend that they are „deeper“. The depth of a free trade agreement relates 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 agreement are relatively cheaper than those with non-parties, free trade agreements are considered 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 agreements will take on essential characteristics for public goods.  A free trade agreement is an agreement between two or more countries whereby countries agree on certain obligations affecting trade in goods and services as well as the protection of investors and intellectual property rights. For the United States, the primary objective of trade agreements is to remove barriers to U.S. exports, protect U.S.
interests abroad, and improve the rule of law in partner countries or countries of the free trade agreement. There are significant differences between unions and free trade zones. Both types of trading blocs have internal agreements that the parties enter into to liberalize and facilitate trade between them. The key difference between unions and free trade zones is their approach to third parties [lack of ambiguity needed]. While a customs union requires all parties to apply and maintain identical external tariffs on trade with non-parties, parties to a free trade area are not subject to such a requirement. Instead, they can set and maintain any customs regime for imports from non-parties, as they see as necessary.  In a free trade area without harmonized external tariffs, the parties will adopt a system of preferential rules of origin to eliminate the risk of trade diversion [necessary ambiguities].  Free trade allows the total import and export of goods and services between two or more countries. Trade agreements are forged to reduce or eliminate import or export quotas.
These help participating countries to act competitively. Few issues divide economists and the scope of public opinion as much as free trade. Studies show that economists at U.S. university faculties are seven times more likely to support a free trade policy than the general public. In fact, the American economist Milton Friedman said: „The economic profession was almost unanimous on the question of the desire for free trade.“ As soon as the agreements go beyond the regional level, they need help. The World Trade Organization intervenes at this stage. This international body contributes to the negotiation and implementation of global trade agreements. A free trade area has several advantages, including: if there is free trade and if tariffs and quotas are abolished, monopolies will also be abolished because more players can enter the market and join the market.
The good thing about a free trade area is that it promotes competition, which increases a country`s efficiency in being on the same account of its competitors. The products and services will then be of better quality without being too expensive. Unlike a customs union, parties to a free trade agreement do not hold common external tariffs, i.e. different tariffs, or other policies concerning non-members. This function allows non-parties to free themselves as part of a free trade agreement by entering the market with the lowest external tariffs. Such a risk requires the introduction of rules