If trade diversion is more important than the creation of trade, the formation of the customs union or the free trade agreement would reduce global well-being. If the creation of trade is more important, global well-being will be strengthened. This trend has increased considerably over the past 25 years, and this cross-border trade is now occurring in virtually every sector. Many products will include parts and materials from many countries; For example, a new suit may have West African cotton that has been transformed into fabric in Bangladesh and sewn in China with buttons imported from India. And then the complaint can be exported to the United States. Another example is the first Airbus Jumbojet 380, which had parts and components from more than 1,500 suppliers in 27 countries. Many companies now have global supply chains that procure parts and materials around the world. Each element or material in the value chain comes from the country that is the cheapest to produce the part, whether because of the equipment of the production factors or specific incentives, such as. B tax holidays. Donors contribute to WBG trust funds, which support the climate of trade and investment. These include DFID, French Development Agency, UNIDO, Asian Development Bank, Islamic Development Bank, USAID, JICA, Gates Foundation, WTO, OECD, IMF, Swiss State Secretariat for Economic Affairs, Swedish International Development and Cooperation Agency, Australian Aid, European Commission, Government of Canada, Norwegian Ministry of Foreign Affairs, UKAID and the Norwegian Ministry of Foreign Affairs.
However, in the event of trade diversion, a member makes sales at the expense of a more competitive producer in a country that is not a member of the bloc, simply because its products enter the market of its partner duty-free, while the non-member producer, more competitive, is subject to a discriminatory obligation.  Third-country exporters with a comparative advantage under equal competitive conditions are losing their commercial character. As a result, companies in certain sectors, such as electronics and chemicals, have become multinationals and have begun to buy and produce parts and materials in a number of countries.