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Reference.org
ERG theory
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<p>The ERG theory is a theory of <a href="/facts/Human_need/s7hd9Xc5">human need</a> proposed by <a href="/facts/Clayton_Alderfer/1a3GFl2j">Clayton Alderfer</a>, which developed <a href="/facts/Maslow%27s_hierarchy_of_needs/cme8UcUx">Maslow's hierarchy of needs</a> by categorizing needs relating to <a href="/facts/Existence/IRAl4dlu">existence</a>, <a href="/facts/Coefficient_of_relationship/FRqB6sAW">relatedness</a> and <a href="/facts/Personal_development/spUlNcqT">growth</a>. </p>