Commerce is the exchange of items of value between persons or companies. Any exchange of money for a product, service, or information is considered a deal of commerce.

Commerce has been a constant part of history. In early times, people traded their excess goods with others for needed goods. So, for example, when a produce farmer had excess crop, he would trade with a neighbor who raised animals. This deal enabled them both to have meat and produce to eat.

Before technological advances, people were only able to trade with their neighbors. As new methods of transportation developed, people were able to trade with people from distant places that they were previously unable to trade with.

The discovery of America resulted from an attempt to improve commerce. That is, it was a unplanned result of the Europeans attempt to find a more direct route to Asia to trade goods for Indian spices.

Historically, commerce between distant places was very expensive. Modern technology has not only greatly reduced the costs of foreign trade, but has also made foreign trade available between individuals. Both the internet and an efficient postal system have made international commerce convenient for businesses as well as individuals.

Commerce is an essential element of capitalism. In a capitalistic economy, an individual or company develops something of value for sale. Commerce allows this entity to profit from its trade and the more widespread commerce can be the more demand there is for goods and services.

Today, most trade involves a form of currency. When a needed product is developed, people trade money for that product. When a needed service is offered, people trade money for access to that service. When new ideas are secured by patent, people trade money for the rights to that idea.

Though trade for necessities is the most important part of commerce, it also promotes new ideas, technologies, and inventions through the prospect of making a profit.