Marketing Length 300-400words Buyer behavior is at the core of marketing. All marketing programs need to begin with an understanding of why and how consumers buy what they do. If no one purchases a company’s product or service, it will quickly go out of business.   Main Discussion Post:   Using the product/service you selected in Unit 1, complete the following:  Describe the model of consumer buyer behavior. Providing a list of the steps or a graphic of the model is not adequate, as you must explain how the process works in the real world using your own words. Select one (1) of the four sets of factors influencing buyer behavior: Cultural Social Personal Psychological   Explain how it affects the purchase process as it relates to the product/service you chose in Week due 1. You must conduct outside research to support your argument.   The product/services chosen in unit 1 is the smart phone. Please provide all references.