Buffy is engaging product users to create an exhaustive list of things that bother them when they use the product and how often those situations arise, then asking the consumers to rate the list in order of importance and asking which brands are associated with the items on the list. she is using an approach called multiple choice problem detection. ethnographic. focus groups. storyboarding. crowdsourcing.

Four key marketing decision variables are price (p), advertising (a), transportation (t), and product quality (q). consumer demand (d) is influenced by these variables. the simplest model for describing demand in terms of these variables is: d = k – pp + aa + tt + qq where k, p, a, t, and q are constants. discuss the assumptions of this model. specifically, how does each variable affect demand? how do the variables influence each other? what limitations might this model have? how can it be improved?