Factors influencing a consumer’s behavior.The most important factors influencing a consumer’s involvement level are their perceived risks.Financial - risk that the outcome will harm the consumer financially.Psychological - risk that the product will lower the consumer’s self-image.The importance of particular evaluative criteria differs from consumer to consumer.A consumer simply feels a physical problem will purchase health supplements.Consumer Behaviour: An applied approach.Consumer Behaviour (5th Ed.) . New Jersey: Prentice-Hall.Types of Consumer Buying Situation.Without such an understanding, businesses find it hard to respond to the customer’s needs and wants.