The marketing concept is a philosophy. It makes the customer, and the satisfaction of his or her needs, the focal point of all business activities.

市场营销就是通过市场交换活动，引导商品或劳务流向顾客，以满足顾客需求，实现企业目标的综合性商务活动过程。

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That makes no sense if you think about businesses trying to maximize their profit from any given transaction, but it makes sense if you remember that customer satisfaction is an important factor in the long-term success of a retail business.

FORBES: Haggling, Social Norms, and Economic Efficiency