Wikipedia defines social exchange theory as a social psychological and sociological perspective that explains social change and stability as a process of negotiated exchanges between parties. Social exchange theory posits that all human relationships are formed by the use of a subjective cost-benefit analysis and the comparison of alternatives. The theory has roots in economics, psychology and sociology.
It is of the same concept as reciprocity which obviously connotes the idea of returning favors, payback or pay off or benefiting from one way to another. This may be usually illustrated using the term “win-win” situation.
Applying this premise in any kind of relationship is such a good practice provided that the consideration would always be on the positive side.