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.“ In general, trade diversion means that a free trade agreement would divert trade from more efficient suppliers outside the zone to less efficient suppliers within the territories. Whereas the creation of trade implies the creation of a free trade area that might not otherwise have existed. In any case, the creation of trade will increase a country`s national well-being.  These agreements between three or more countries are the most difficult to negotiate. The larger the number of participants, the more difficult the negotiations. They are, by nature, more complex than bilateral agreements, insofar as each country has its own needs and requirements.
Governments with free trade policies or agreements do not necessarily abandon import and export controls or eliminate all protectionist policies. In modern international trade, few free trade agreements lead to completely free trade. The increasing technological and political complexity of trade has led to the extension of the scope of trade rules, far beyond traditional border trade measures, to measures that are applied across the border that address issues of regulation, standards, market structure in the services sector and intellectual property protection. From the point of view of trade negotiations, the challenge is to transform the regulatory issues that have developed by taking into account domestic public goods into frameworks aimed at reducing business costs by reducing costs to businesses by complying with these rules, without compromising the general public benefits sought by the regulations. The United States has another multilateral regional trade agreement: the Dominican Republic-Central America Free Trade Agreement (CAFTA-DR). This agreement with Costa Rica, the Dominican Republic, El Salvador, Guatemala, Honduras and Nicaragua eliminated tariffs on more than 80% of U.S. exports of non-textile goods. The United States currently has a number of free trade agreements in place. These include multi-nation agreements such as the North American Free Trade Agreement (NAFTA), which includes the United States, Canada and Mexico, and the Central American Free Trade Agreement (CAFTA), which includes most Central American nations.