The law of contracts encompasses exchange relationships of limitless variety.

The second is the degree of commitment by the Group of Seven policy makers to maintain current exchange relationships.

The university has academic exchange relationships with 83 universities in 16 countries.

For most public relations activities, developing communal relationships with key constituencies is much more important to achieve than would be developing exchange relationship.

Moreover, as we saw earlier, it is possible to argue that to pay for a service produces an equal exchange relationship.

It is not until that gift has been repaid and the exchange relationship put in balance again that a person will feel no sense of obligation.

Reciprocity is a dyadic exchange relationship that we characterize, imprecisely, as gift-giving.

This led to an exchange relationship between the two schools that was still operating seventy years later.

It has a cultural exchange relationship with Chatillon-sur-Indre.

An exchange relationship has been established with a Chilean High School so that every year, students alternate exchanges.