The GATT/WTO helps countries trade more by giving them access to more markets and a wider range of products. This makes it easier for countries to sell their goods to other countries. The GATT/WTO also helps countries trade more in agriculture, but not as much as in other sectors. On the other hand, preferential trade agreements like RTAs encourage countries to specialize in specific products. Both the GATT/WTO and RTAs work together to make international trade easier and more efficient.