在市场经济国家中,细分市场,细分客户,实行差别化服务是商家营销的普遍做法。这就是市场经济最重要的游戏规则之一——“完全价格岐视”。1926年,经济学家庇右(pigou)发现市场经济中存在一个“无耻”的游戏规则,并给它取名“一级价格歧视”或“完全价格岐视”。例如,一本书定价60美元,只有 In market economy countries, market segmentation, customer segmentation, the implementation of differentiated services is a common practice of business marketing. This is one of the most important game rules of the market economy - “full price discrimination ”. In 1926, economist Pigou found that there was a “shameless” rules of the game in the market economy and named it “first class price discrimination” or “full price discrimination.” For example, a book is priced at $ 60, only