The Tree-diagram gives information about Commerce and its types. Generally, commerce mean the trade and auxiliaries to trade. Trade is classified into two types- the home trade and foreign trade. The home trade plays an important role in national economy as the wholesale and retail trading involves a large number of people by providing them means of living. On the other hand, the foreign trade consists of import and export of goods. This type of trading consists of a few number of economic factors. Commerce cannot exist without its auxiliaries. These auxiliaries include transport, communication, banking, finance, insurance, warehousing and advertising.Â