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Maslow's hierarchy vs Alderfer's ERG

Short answer

Motivation is the inner force that drives people to satisfy needs. Maslow has five needs in a strict upward order, with satisfied needs stopping motivation. Alderfer has three needs: Existence, Relatedness and Growth, allows several needs at once, and includes frustration-regression where a blocked higher need strengthens lower needs.

What is motivation? Explain the difference between Maslow's hierarchical need theory and Alderfer's ERG theory.

Motivation

Motivation is the inner force that makes people act to satisfy their needs and achieve goals. Managers motivate employees by offering rewards that satisfy their needs.

Maslow's need hierarchy

Abraham Maslow proposed five needs in order: physiological, safety, social, esteem and self-actualization. A lower need must be satisfied before a higher need is activated; a satisfied need no longer motivates.

Alderfer's ERG theory

Clayton Alderfer (1969) reduced the needs to three:

  • Existence (E): physiological and safety needs (pay, working conditions).
  • Relatedness (R): social needs and esteem from others.
  • Growth (G): esteem (self) and self-actualization.

Differences

BasisMaslowAlderfer ERG
Number of needsFiveThree
OrderStrict, step by step upwardFlexible, more than one need can operate at once
MovementOnly upward (satisfaction-progression)Upward and downward (frustration-regression)
Satisfied needStops motivatingMay continue to motivate, especially growth
FrustrationNot explainedIf a higher need is frustrated, the lower need becomes stronger
Individual and cultural differencesLittle roomRecognises that order varies
TestingLittle research supportMore support

Example: if a Nepali employee cannot get a promotion (growth need frustrated), he may focus on more pay or friendly relations (existence or relatedness), which is explained by ERG but not by Maslow.

✓ Answer checked by Claude Opus 5.5 (high effort)

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