Introduction to economic activity

Economic activity began with the caveman, who was economically self-sufficient. He did his own hunting, found his own shelter and provided for his own needs. As primitive populations grew and developed, the principle of division of labour evolved. One person was more able to perform an activity than another and therefore each person concentrated on what he did best. While one hunted, another fished. The hunter then traded his surplus to the fisherman, and thus each benefited.

In today's complex economic world, neither individuals nor nations are self-sufficient. Nations have utilized different economic resources; people have developed different skills. This is the foundation of world trade and economic activity. As a result of this trade and activity, international finance and banking have evolved.

For example, the United States is a consumer of coffee, yet it does not have the climate to grow any of its own. Consequently, the United States must import coffee from countries (such as Brazil) that grow coffee. On the other hand, the United States has large industrial plants capable of producing a variety of goods, which can be sold to countries that need them.

If nations traded item for item, such as one automobile for 10,000 bags of coffee, foreign trade would be cumbersome and restrictive.

But instead of barter, which is the trade of goods without an exchange of money, all countries receive money in payment for what they sell. The United States pays for Brazilian coffee with dollars, which Brazil can then use to buy the wool from Australia, which in turn can buy textiles from Great Britain, which can then buy tobacco from the United States.

Foreign trade, the exchange of goods between nations, takes place for many reasons such as: no nation has all the commodities that it needs, a country often does not have enough of a particular item to meet its needs, and one country can sell some items at a lower cost than other countries.