Existence, Relatedness, Growth - ERG Theory

The ERG Theory of Clayton P. Alderfer is a model that appeared in 1969 in a Psychological Review article entitled "An Empirical Test of a New Theory of Human Need". In a reaction to Maslow's famous Hierarchy of Needs, Alderfer distinguishes three categories of human needs that influence worker’s behavior; existence, relatedness and growth.

Adam's Equity Theory- Job Motivation

Equity Theory reminds us that people see themselves and crucially the way they are treated in terms of their surrounding environment, team, system, etc - not in isolation - and so they must be managed and treated accordingly.