The use of coercive power tends to increase referent power, whereas the use of reward power tends to diminish referent power.

Coercive Power

Authority or power that is based on the ability to punish or inflict sanctions on others.

Referent Power

Referent Power is a form of influence based on the charisma or likeability of an individual, leading others to emulate or follow them voluntarily.

Reward Power

The ability to influence others' behavior through the offering of positive incentives or benefits.