For many years, psychologist and theorists alike have wondered, why does man do what he does? Why does a certain action take place? What is the motivation to perform a certain act? Finally, a psychologist, Clayton P. Alderfer answers these complicated questions with his ERG Theory. Clayton P. Alderfer’s ERG Theory comes under the very intriguing topic of Motivation in Psychology. It is a rather well known theory in the topic of theories of motivation, and more specifically, it’s Content Theories. Commonly, this theory goes hand in hand with Abraham Maslow’s Theory on the Hierarchy of Human Needs, as it is a condensed form of it. However, there are certain differences to the ERG and The Hierarchy of Human Needs Theory. Maslow’s Theory vs. Alderfer’s Theory    1) Abraham Maslow’s Hierarchy of Human Needs Theory: Before Clayton P. Alderfer, another American Psychologist, Abraham Maslow, explained the causes for behavior, or…