Etymologically the word necessity comes from the Latin “necessĭtas”. It is understood by necessity the irrepressible impulse that causes the causes to proceed unequivocally in a certain sense or way. This is a word that has various uses and meanings in different areas and may or may not be related; Another use of it is to describe the sensation of lack or scarcity that human beings experience, and which they fully want to satisfy, among these needs are hunger, cold, affection, among many others.
In the psychological environment, A braham Maslow created a pyramid where he classifies the needs of human beingsThis comprises five levels or steps, where the first level is the basic or physiological needs, which are to breathe, sleep, feed, sex, among others. Then the second level exposes the security or protection needs, among these are physical, employment, housing, moral security, etc. At the next level are the affiliation or social needs such as friendship, affection, among others; then the recognition needs, which are trust, self-recognition, respect, etc. and finally the last step includes the needs of self-realization this is the peak of the needs, here the human being can do what he feels gifted for.
In the field of economics, the desire or aspiration to achieve a product or brand as such is understood by necessity. This area's basic objective is to solve the problem of how to satisfy human needs. Finally, in general, need is a basic factor in man, which in one way or another affects his behavior, since he feels the lack or lack of something, in order to feel better.
