摘要：This demand planning method is based on the Porter’s competitive influences of the brand. Concretely, it is based on the deterministic formulation of some particular factors which are influencing the demand in time. It is not necessary to know the retrospective demand to predict the future demand. That is the highest advantage of this method.
关键词：demand prediction; firm dynamics; competitors influence; customers influence; substitutes influence and parameters of influence; utility.
