Social exchange theory proposes that social behavior results from a cost-benefit analysis process where people weigh the costs and benefits of their social relationships. When the costs of a relationship outweigh the rewards, people will terminate or abandon it. According to the theory, people consider factors like time, effort, social support, and fun when determining if a relationship is positive, with benefits outweighing costs, or negative, with costs greater than benefits. The theory was first identified by American sociologist George C. Homans in 1958.