Social capital

 is a term used to refer to the extent of positive, collective, socially-stored potential which can be drawn upon within a society. It is analogous to notions of economic capital.

Social capital is poorly understood, loosely measured, and chronically undervalued. Current economic activities do not properly account for social capital, resulting in its unnecessary diminishment. - Conservation Economy

Lin (2001) defines social capital as resources embedded in a social structure that are accessed and/or mobilised in purposive actions.