This document defines and discusses several concepts related to identity:
1. Self identity is defined as one's own identity or individuality. Social identity is defined as the part of one's self-concept derived from perceived membership in a social group.
2. Social identity theory introduced the concept of social identity to explain intergroup behavior. Types of social identity include inter-personal and inter-group continuum.
3. Empowerment is defined as sharing information, rewards, and power with employees so they can make decisions to solve problems and improve performance. It is based on holding employees responsible for their actions.