·         Power is the ability to affect the behavior of others.

Legitimate power is granted through the organizational hierarchy.

Reward power is the power to give or withhold rewards.

Coercive power is the capability to force compliance by means of psychological, emotional, or physical threat.

Referent power is the personal power that accrues to someone based on identification, imitation, loyalty, or charisma.

Expert power is derived from the possession of information or expertise.