This paper examines the novel construct of couple identity clarity—the extent to which an individual, as one of two partners in a romantic relationship, believes that the two of them know who they are as a couple. High couple identity clarity predicts greater relationship commitment, less likelihood of breakup, and may be enhanced by successful conflict resolution.
Emery, L. F., Gardner, W. L., Carswell, K. L., & Finkel, E. J. (in press). Who are “we”? Couple identity clarity and romantic relationship commitment. Personality and Social Psychology Bulletin.