Explanation : Consumer behaviour consists of all the activities people undertake when obtaining, consuming and disposing of products and services. Studying consumer behaviour involves looking at what influences people to behave in particular ways when obtaining products, using them and disposing of them. Understanding the way people think when they go about their purchasing behaviour is a key factor in successful marketing. The motivations, decision-making processes and post-purchase behaviour of consumers are useful when seeking to persuade people to choose one product rather than another, and to encourage people to recommend products to their friends.