But that no particular stock is more or less likely to outperform the market, because all the information is incorporated in the price.

但是没有那一种特殊的股票是,最有可能比市场平均表现更好的，因为所有信息都是包含在价格上的。

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In that case, alpha is a measure of how much Shiller,Inc. outperforms.

这样的话,alpha就用以衡量,希勒公司.表现超过市场平均水平多少

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