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Alderfer Needs Theory Presentation
Also known as ERG Theory (Existence,
Relatedness and Growth), Alderfer Needs Theory, developed by Clayton
Alderfer, is one of the several theories that seek to explain human
motivations through the needs satisfaction. In many aspects very similar
to Maslow’s Needs Theory, Alderfer Needs Theory also explains the
employees motivation according to their needs hierarchically grouped in
a pyramid. Presents however some disagreement aspects regarding Maslow,
namely in the following:
. Unlike Maslow who considers 5 levels of
needs, Alderfer considers only 3, namely the needs of Existence,
Relatedness and Growth (therefore the acronym ERG);
. Even though usually the emergency of a
need with possibility of motivation only occurs after being satisfied
the needs of the previous levels (like Maslow defends), there are
situations in which the employees can activate their highest level needs
without having completely satisfied the lower levels needs;
. Alderfer defends, unlike Maslow, that
when the needs at a superior level are frustrated, the lower level need
return, even being already satisfied.
Translated from Portuguese
by Susana Saraiva, Portuguese-English and English-Portuguese translation
specialist. Contact: spams@sapo.pt.
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