Multiplex exchange relations

A multiplex relation occurs when actors share different roles, actions, or affiliations that overlap in a relationship, such as co-workers who are also friends outside of work. Although multiplex relations are as varied as they are pervasive and often problematic, we know surprisingly little about when, under what circumstances, and exactly how overlapping ties affect social relations. Do they strengthen or weaken relationships? When do relationships become multiplex? How do they affect networks at large? In this chapter, we review notable studies that exist on this topic and suggest key questions and issues for future research. Our goal in particular is to suggest how exchange theory could contribute to these efforts.