我用sp500指数数据,用GARCH(1,1)模型估计参数的结果如下示:
ARCH family regression
Sample: 2 - 1000 Number of obs = 999
Distribution: Gaussian Wald chi2(.) = .
Log likelihood = 2996.034 Prob > chi2 = .
------------------------------------------------------------------------------
| OPG
| Coef. Std. Err. z P>|z| [95% Conf. Interval]
-------------+----------------------------------------------------------------
dlnsp |
_cons | .0005057 .0003361 1.50 0.132 -.0001529 .0011644
-------------+----------------------------------------------------------------
ARCH |
arch |
L1. | .093167 .014663 6.35 0.000 .0644281 .1219059
garch |
L1. | .8988903 .0147197 61.07 0.000 .8700403 .9277403
_cons | 1.78e-06 3.82e-07 4.66 0.000 1.03e-06 2.53e-06
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我的问题是,这个结果是什么意思?模型所估计的参数通过显著性检验了吗?这个参数回归结果可以接受吗?如果还想做其他的检验如T检验,计算R平方的值,应该用什么命令呢?请大家不吝赐教!谢谢了^_^