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.

Total marketing effort is a term used to describe the critical decision factors that affect demand: price, advertising, distribution, and product quality. define the variable x to represent total marketing effort. a typical model that is used to predict demand as a function of total marketing effort is based on the power function: d = axb suppose that a is a positive number. different model forms result from varying the constant b. sketch the graphs of this model for b = 0, b = 1, 0< b< 1, b< 0, and b> 1. (we encourage you to use excel to do this.) what does each model tell you about the relationship between demand and marketing effort? what assumptions are implied? are they reasonable? how would you go about selecting the appropriate model?