如今，在商战中，“降价”“打折”成了各家的常规武器。然而，由于这种武器太原始了，并非都能命中目标。经济学理论告诉我们，需求是价格的函数。二者的函数关系可以从两个层面上理解。首先，从行业层面上理解，在其它条件相同时，对于大多数商品来说，价格越低，需求量越大 Nowadays, in the commercial warfare, “price reduction” and “discount” have become the conventional weapons of every household. However, since such weapons are too primitive, not all can hit the target. Economic theory tells us that demand is a function of price. The functional relationship between the two can be understood from two aspects. First of all, it is understood from an industry perspective that for the most part, the lower the price and the larger the demand when the other conditions are the same