误差修正模型回归结果如下:
Dependent Variable: D(LNGDP)
Method: Least Squares
Date: 05/16/14 Time: 02:32
Sample (adjusted): 1994 2012
Included observations: 19 after adjustments
Variable Coefficient Std. Error t-Statistic Prob.
D(LNHWZ) 0.819188 0.293499 2.791110 0.0137
D(LNHYL) -0.344156 0.182991 -1.880723 0.0796
D(LNWLC) 0.409843 0.146560 2.796422 0.0136
ET(-1) -0.345574 0.199304 -1.733906 0.1034
R-squared -0.425129 Mean dependent var 0.105263
Adjusted R-squared -0.710155 S.D. dependent var 0.068268
S.E. of regression 0.089276 Akaike info criterion -1.809512
Sum squared resid 0.119552 Schwarz criterion -1.610682
Log likelihood 21.19036 Hannan-Quinn criter. -1.775862
Durbin-Watson stat 0.982850
这样的结果是不是不可以的?R方为负值是不是不行?为什么会出现这种情况呢?


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