1. Power Refers to a capacity that A has to influence the behavior
The definition implies a potential that need not be actualized to be effective.
The more B is dependent upon A, the more power A has

2. Position Based Power Coercive Power Reward Power Legitimate Power
Control over punishments
Influence is based upon one’s fear of the negative results that might occur if you don’t comply
Reward Power
Control over rewards
Influence is based upon one’s desire to receive benefits/rewards
Legitimate Power
Due to position in the hierarchy, person has authority to make decisions – other than those involving distribution of rewards and/or punishments

3. Person Based Power Information Expert Referent Access
Specialized knowledge, skills, and experience
Others become dependent upon you
Referent
Personal traits, charisma
Identification-based influence (others are influenced because they want to be around you and behave as you do)
“Be like Mike” (Gatorade commercial)