Expert power is demonstrated when A gains power because A has knowledge or expertise related to B.
Power is what we call the ability to influence an individual's attitudes and behavior. Authority generally describes a person's position. It is derived from multiple sources such as seniority, technical proficiency, etc.
Social psychologists; John French and Bertram Raven identified five bases of power: Legitimate. Reward. Expert. Referent. Coercive.
Most rely on softer forms of power to facilitate employee commitment to organizational goals and plans. These include legitimate, referent, and expert powers.
Referential power can be classified as personal power because it is the power that indicates a person's influence over any situation.
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