Each of us is motivated by needs. Our most basic needs are inborn, having evolved over tens of thousands of years. Abraham Maslow's Hierarchy of Needs helps to explain how these needs motivate us all.

Maslow's Hierarchy of Needs states that we must satisfy each need in turn, starting with the first, which deals with the most obvious needs for survival itself.

Only when the lower order needs of physical and emotional well-being are satisfied are we concerned with the higher order needs of influence and personal development.

Conversely, if the things that satisfy our lower order needs are swept away, we are no longer concerned about the maintenance of our higher order needs.

Maslow's original Hierarchy of Needs model was developed between 1943-1954, and first widely published in Motivation and Personality in 1954. At this time the Hierarchy of Needs model comprised five needs. This original version remains for most people the definitive Hierarchy of Needs.

Let's start thinking about one question:

Is a person's every single behavior able to be categorized as demand? What is the fundamental motivation for these demands? Can we categorize all the behaviors in this society a supply-demand relationship?