the basic forces that motivate a person to do something to sustain biological life
Motivation Alderfer, expanding on Maslow's hierarchy of needs, created the ERG theory. This theory posits that there are three groups of core needs â€” existence, relatedness, and growth, hence the label: ERG theory. The existence group is concerned with providing our basic material existence requirements. They include the items that Maslow considered to be physiological and safety needs. The second group of needs are those of relatedness- the desire we have for maintaining important personal relationships. These social and status desires require interaction with others if they are to be satisfied, and they align with Maslow's social need and the external component of Maslow's esteem classification. Finally, Alderfer isolates growth needs as an intrinsic desire for personal development. Maslow's categories are broken down into many different parts and there are a lot of needs. The ERG categories are more broad and covers more than just certain areas. As a person grows, the existence, relatedness, and growth for all desires continue to grow. All these needs should be fulfilled to greater wholeness as a human being.[49] These include the intrinsic component from Maslow's esteem category and the characteristics included under self-actualization.