所有序列都不平稳的结果已经得出。下面准备做EG两步法协整, 下图是OLS的结果。准备检验残差的平稳性。我的方程是要看X2对Y的影响。我看拟合度有点小。而且R2 》DW。请问可以继续下一步吗?还有,我只需要知道X2对Y的影响,有人建议我用JJ协整。请问有必要吗?
Variable
| Coefficient
| Std. Error
| t-Statistic
| Prob.
|
X1
| -0.335221
| 0.026820
| -12.49909
| 0.0000
|
X2
| 0.005815
| 0.040590
| 0.143267
| 0.8863
|
X3
| 0.006509
| 0.005337
| 1.219513
| 0.2252
|
C
| 6.025356
| 0.224925
| 26.78833
| 0.0000
|
| | | | |
R-squared
| 0.663841
| Mean dependent var
| 4.621623
|
Adjusted R-squared
| 0.654756
| S.D. dependent var
| 0.029578
|
S.E. of regression
| 0.017380
| Akaike info criterion
| -5.232880
|
Sum squared resid
| 0.033527
| Schwarz criterion
| -5.137404
|
Log likelihood
| 304.8906
| Hannan-Quinn criter.
| -5.194127
|
F-statistic
| 73.06704
| Durbin-Watson stat
| 0.167156
|
Prob(F-statistic)
| 0.000000
| | | |