A company has developed a new cell phone which will be targeted to developing countries. It is estimated that the demand for the new product will initially be slow but would accelerate gradually as the product becomes increasingly familiar to worldwide consumers. In order to determine the number of workers necessary to staff the new production facilities, the company needs to conduct a(n):

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?