In the products Market's studies of agricultural business, large deal of its problems developes in the empirical field. The tendencies in the product's price from the agrarian firm as well as the tendency of the retail costs, and the consumer's; are frequently the reference terms used to evaluate the performance os its own marketing. It is warth to emphasize that the efficiency of a agricultural business depends on the high degree of dinamics and aggresiveness wiht it over passes new markets, either be these national or international, in order to place its products. The efficiency of marketing is defined as the cost - benefir (cost-profit) of the indicator' s optimization (optimizing-point). There are two kinds of marketing efficiency: The technical efficiency thar implees the use of technologies and handling methods seeking to reduce the product losses along the marketing process and the economic efficiency that propends (tends, are inclined to) the obtetion ofthe most income in currency (monetary) terms or by any other sort with the lesser resources. The following are indicators for determining the sustem's efficiency of marketing from an agro-business product: the prices of consume's price the marketing margin (options), the possibility for physical supplies (locations) for the marketing and the marketing competition.