Abstract
This paper will give brief introduction to the deep meaning behind the word groupthink and the extent to which it is prevalent in our society today , at home, work places, institutions, entertainment places and its effect on consumer buying behavior. Then there will be an elaborate discussion on one of the well documented form of Groupthink in behavioral psychology called Bandwagon effect and its contribution in shaping consumer behavior by looking from different aspects of marketing and products. This effect relates to the spread of different beliefs among people even without any strong evidence and affects the psychology and personality of the person. This mainly helps people to identify themselves and categorize into groups which eventually become the reference group for all their behavior , adaptations and decisions. This forms the basis of the formation of groups, societies pertaining to which is a major part of the social psychology. At last but not the least some real life examples can be will be added to give insights from a practical dimension rather than just theoretical perspective to help understand and develop the idea even more. These examples will never occur to us until we try to think in this particular perspective and realize than since childhood we have been a part of them.
Introduction
Human being is a social animal. We cannot survive alone that is the reason that over the years they have developed thousands of such bonding and relationships which will bind the mankind together divide into countries, states, cities, societies, communities, localities and further down into individual families. The major fact is that this whole system is deeply rooted in the existence that they normally overlook such connections if not particularly focused upon. These have become the subconscious part of the human brain, the hidden part of the