关于调整印花税对噪声收益波动性的影响，研究方法是方差齐次检验，结果是调整证券交易印花税对小组合的影响是显著的。

The results of the study show that the DBMD models can capture the persistence of return volatility, and reveal the joint dynamic relations between price volatility and trading volume.

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你可以看到，股票市场波动性大于其收益，每股价格往往是，每股收益的几倍之多。

You can see that the stock market has been more volatile than the earnings and the price of a share is many times higher than the earnings per share.

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结果表明税率调整对噪音交易收益的波动性有一定的影响。

Results show stamp tax adjustment has an effect on the volatility of noise trade.

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You can see that the stock market has been more volatile than the earnings and the price of a share is many times higher than the earnings per share.

你可以看到,股票市场波动性大于其收益,每股价格往往是,每股收益的几倍之多

耶鲁公开课 - 金融市场课程节选