Which concept suggests that relationship satisfaction increases when both partners contribute equally?

The concept illustrating how relationship satisfaction increases with equal contributions from both partners is known as equity theory. This theory posits that individuals in a relationship seek balance and fairness; when both partners feel they are contributing equally, satisfaction within the relationship tends to increase. The idea is that perceived equity generates positive feelings and enhances commitment, as both partners feel valued and fair treatment leads to greater harmony.

While reciprocity emphasizes the mutual exchange of benefits and obligations in a relationship, it does not specifically address the balance of contributions as equity theory does. Commitment theory focuses on the willingness of partners to remain in a relationship over the long term, which is influenced by factors such as shared investments and emotional attachment, often stemming from equitable contributions. Attachment theory, on the other hand, relates to the emotional bonds and security between partners rather than the balance of contributions.

Understanding equity theory helps clarify why equal contributions are essential for relationship satisfaction, aligning partners' perceptions of fairness with their emotional well-being.