O metoda comparative de masurare a vanzarilor unui brand pe o piata in compartie cu alte piete; folosit pentru a stabili valorile relative de vanzari intre piete. Poate contribui la a indica specificitatea regionala a campaniilor media. (vezi CDI).
Brand Development Index. A comparative measure of a brand's sales in one market compared with other markets, used to decide the relative sales value of one market versus another. Can contribute towards determining regionality for media campaigns (see CDI).