Interdependence Theory:

Interdependence theory is a social psychology framework for how relationships are influenced by dependencies on one other (romantic, workplace team). We’re affected by what others do in social interaction. Developed by American social psychologists Harold Kelley (1921-2003) and John Thibaut (1917–1986), the theory focuses on how relationship structures affect individual psychology and decision-making and suggests we evaluate relationships by considering what we gain/lose in our interactions with others.