Duocentric social network
A duocentric social network is a type of social network composed of the combined network members of a dyad. The network consists of mutual, overlapping ties between members of the dyad as well as non-mutual ties. While an explicit conceptualization of duocentric social networks appeared for the first time in an academic publication in 2008, the history of the analysis dates back to at least the 1950s and has spanned the fields of psychology, sociology, and health.