Trade - the voluntary exchange of goods, services, or both. Trade is also called commerce or transaction. A mechanism that allows trade is called a market. The original form of trade was barter, the direct exchange of goods and services. Trade exists for man due to specialization and division of labor, most people concentrate on a small aspect of production, trading for other products. Trade exists between regions because different regions have a comparative advantage in the production of some tradable commodity, or because different regions' size allows for the benefits of mass production. As such, trade at market prices between locations benefits both locations......Proper text to be added later....