Depends on--I don't want to be too rigorous about that because you could imagine the other way around, but if you talk to managers this sounds more realistic, at least for retail goods like Coke and Pepsi.

这方面我不想太绝对,因为你们可能会想象其他的情形,但如果你们和那些经理谈过,现在的模型会更贴近现实,至少对于可乐这样的零售产品而言

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