Explanation:

Reference groups can and do have a tremendous influence on purchasing decisions. This is evident in a number of ways, such as through roles. Everyone is expected to behave in a certain way based on the reference group we belong to. Students act like students. In keeping with this idea, people will often modify their own behavior to coincide with group norms (even those that profess non-conformity are in some ways conforming with other people who want the same thing). Reference groups communicate through opinion leaders, who influence what others do, act, and buy. In the consumer world, this means that if a reference group purchases a product, those that associate with the group likely will as well.