Brad the harmonizer "There are enormous benefits to arranging things this way. As soon as we enter into a gift-exchange relationship with someone or something we will see again--perhaps often--it will automatically shade over into the friend zone. This is just who we are. And as soon as we think about entering into a gift-exchange relationship with someone, we think better of them. Thus a large and extended division of labor mediated by the market version of gift-exchange is a ver powerful creator of social harmony."