在理性的经济学中，价格应该完全相同。
In rational economics, the price should be exactly the same.
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一位商业学教授说“那是所有价格战的源头”。
That was, as one business professor put it, "the mother of all pricing battles."
价格理论是经济学的核心理论。
The core theory of economics is pricing theory.
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