The answer would be Economic Growth.
The GATT (now WTO, World Trade Organization) was a trade agreement between 23 founding member nations to promote international trade and cooperation. This was achieved by eliminating trade barriers between the member nations such as tariffs/taxes or quotas
It is worth noting that the GATT only operated with tangible goods, where the WTO today operates with goods and services.
(The GATT was founded in 1947 and lasted until 1994 when the WTO was formed.)
