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%. In 1995, GATT became the World Trade Organization (WTO), which now has more than 140 member states. The WTO controls four international trade agreements: the GATT, the General Agreement on Trade in Services (GATS) and the Trade-Related Intellectual Property Rights and Trade Investment Agreement (TRIPS and TRIMS). The WTO is now the forum for members to negotiate the removal of trade barriers; The most recent forum is the Doha Development Round, launched in 2001. The most favoured nation clause prevents one of the parties to the current agreement from continuing to remove barriers to another country. For example, in exchange for reciprocal concessions, Country A could agree to reduce tariffs on certain products from Country B. In the absence of a clause of the most favoured nation, Country A could still reduce tariffs on the same goods from Country C in exchange for other concessions. As a result, consumers in Country A could purchase the products in question at a cheaper price in Country C because of the tariff difference, while Country B would get nothing for its concessions. The status of the most favoured nation means that A is required to extend the lowest existing tariff to certain products to all its trading partners enjoying such status.
If A later accepts a lower rate with C, B automatically gets the same lower rate. The largest multilateral agreement is the agreement between the United States, Mexico-Canada (USMCA, formerly the North American Free Trade Agreement (NAFTA) between the United States, Canada and Mexico. Despite the potential tensions between the two approaches, it appears that multilateral and bilateral/regional trade agreements will remain characteristics of the global economy. However, both the WTO and agreements such as NAFTA are controversial among groups such as alter-globalists, who argue that such agreements serve the interests of multinationals and not workers, while free trade was a proven method of improving economic performance and increasing overall income. To counter this opposition, pressure has been exerted for labour and environmental standards to be included in these trade agreements. Labour standards contain provisions relating to the minimum wage and working conditions, while environmental standards would prevent trade if there were fears of environmental damage. In principle, free trade at the international level is no different from trade between neighbours, cities or states.