According
to the book by Harris and Sherblom, having ability to access particular
information that is valued generates expert Power. To the extent that a
group has a problem to solve that involves an understanding of technical,
regulatory, political or other specialized information those with that
information will be in position to exercise their power to guide and influence
the group discussion and decision making.
For
eg: in the community group looking for solutions to its solid waste disposal
problem, a trash hauler for the community may have expert power. That person
knows the amount and content of the trash that needs to be disposed of, and
this information becomes a vital element in the decision making process.
However it is important to keep the power of that person in perspective of the
problem so that it doesn’t ride over the larger goals of the group process. However,
it frequently is easy for those who hold expert power to abuse it by directing
it, consciously or unconsciously toward some measure of personal growth.