A major grocery chain pays its baggers a regular hourly wage. The baggers not only pack the groceries, but they also will take customers' groceries to their car, regardless of the weather. The baggers are not permitted to accept tips, even if they are offered. The consumer will experience this shopping experience as

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?