Sources of Leader Power:
Legitimate power: stems from position in the management hierarchy and the authority given to this position.
Reward power: stems from the capacity to control by providing valued rewards to others.
Coercive power: stems from the capability to punish others if they do not engage in desired behaviour.
Expert power: stems from the possession of expertise which is valued by others.
Information power: stems from access to/control over the distribution of important information.
Referent power: stems from being admired, personally identified with, or liked by others.