Economic and Trade: Post WWII, the US and its winning allies came to the conclusion that a stable liberal international economic order is the necessary basis of lasting peace, apart from stable international political order. The ITO (International Trade Organizations) came to an end due to political disagreements. In 1947, GATT (General Agreement on Tariffs and Trade) was formed as a free standing trade agreement, which was less formal in nature. The GATT agreements were formalized as the WTO. The 1970s saw a substantial reduction in tariffs on many goods. During the 1980s and 1990s, the GATT member countries took the initiatives to make the agreement more formal.
Financial: World Bank made a lot of amendments in its loan practices by implementing recommendations of the French government and the Marshall Plan. The bank started shifting its focus towards non-European nations. During 1968-1980, it worked towards poverty alleviation by that ensuring people in developing nations get their basic needs. From 1989 till late 2000s, the focus has been shifted to going green. After WWII, the IMF also focused on offering monetary help to non-European countries.
The main objective of all the international organizations has been welfare improvement of member countries. The importance of international organizations lies in the following: