Social capital.

Social relations refers to the ways that people as individuals or as members of groups interact with each other. For example, in agricultural communities, people often join together to volunteer their labor for an activity that a single household cannot manage, such as building a barn. Organizations based on philanthropy and charitable giving are also forms of social relations that have the benefit of providing support for those who need it. Social relations may also involve an exchange among individuals, such as a dowry offered for a marriage or a baker offering space in a working oven during a period of spare capacity. Economic models that focus on the basic inputs of land, labor, and capital are insufficient to explain many contemporary commercial activities. Thus, a new form of input called social capital, which is defined as social relations that have productive benefits, has been added to many economic models.