Now we need to think about a model of the stock market And the model we're going to use is based on what's called the Efficient Market Hypothesis.

现在需要想一想一个股市的模型是怎样的,我们要用的模型是,基于有效率市场假说的。

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So, on both counts, they say this is no good.

所以基于这两点，这个模型不好。

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