In general, consists of social relations rather than public, then we and other people have viewed the interplay of behavior in the relationship, that there are elements of discipline, of sacrifice and gain. The reward is all that is obtained through the sacrifice, when the sacrifice is all that inevitable, and profit is the reward is reduced by the sacrifice. So social behavior consists of the exchange at least between two people based on cost-benefit calculation. For example, patterns of behavior in the workplace, romance, marriage, and friendship.

The precursors and stressors to divorce.