Introduction to consumer behavior

According to this article the meaning of consumer as well consumer interest has been introduced. I would say as per this article consumer interest is parallel related or depends upon the consumer choice and behaviour. Every consumer or individual buys a product as per their need or based on their requirements. The next point would be is budgeting. Budget do have an effect on consumer choice. Every consumer has certain budget while making choices which is based on their income as well. Finally I learned from this article is that every consumer should be given the right to buy a product as per their need and requirements and not be enforced on them.