These two types of relationships have been
conceptualized as a zero sum classification;
i.e. the relationships between the two parties
are either governed by the economic
exchange type or by the social exchange type.
If the collaborators identify with the leader to
the point of forming a certain upper echelon,
they are capable of passing the limits of what
is formally required and entering to form a
part of the leader's in-group. On the other
hand, if the collaborators do not identify with
the leader, but only meet their formal
obligations, they will form a part of the
leader's out-group (Dansereau et al., 1975).
From this perspective the work of being a
leader consists of ``identifying'' one's
subordinates with the company, motivating
them in such a way that they value and
sacrifice themselves for the objectives of the
group (Bass and Avolio, 1994).