In data experiment, after strict statistic quality tests of the sample data, we found two improved CAPM, made data regressing experiment and also made short and middle forecasting.

• 在实证部分,对样本进行了严格的统计性质检验后,本文建立了两种改进的CAPM模型,进行了数据拟合实验及样本外的中、短期预测。