Conflict theory emphasizes interests, rather than norms and values, in conflict. The pursuit of interests generates various types of conflict. Thus conflict is seen as a normal aspect of social life rather than an abnormal occurrence. Competition over resources is often the cause of conflict. The three tenets of this theory are the following: 1) Society is composed of different groups that compete for resources. 2) While societies may portray a sense of cooperation, a continual power struggle exists between social groups as they pursue their own interests. Within societies, certain groups control specific resources and means of production. 3) Social groups will use resources to their own advantage in the pursuit of their goals. This often means that those who lack control over resources will be taken advantage of. As a result, many dominated groups will struggle with other groups in an attempt to gain control. The majority of the time, the groups with the most resources will gain or maintain power (due to the fact that they have the resources to support their power). The idea that those who have control will maintain control is known as The Matthew Effect.