luxiahyun 发表于 2010-4-3 10:26 
分析的序列是GDP和固定资产投资(FI)的对数序列LGDP和和LFI(均为I(1)单整)且对LGDP和LFI作回归取残差作单 ...
我也在做vec模型,结果如下:
Vector Error Correction Estimates
Date: 06/20/13 Time: 13:17
Sample (adjusted): 1988 2010
Included observations: 23 after adjustments
Standard errors in ( ) & t-statistics in [ ]
Cointegrating Eq: CointEq1
LNG(-1) 1.000000
LNF(-1) 1.499068
(0.45732)
[ 3.27796]
C -8.530578
Error Correction: D(LNG) D(LNF)
CointEq1 0.078061 -0.058181
(0.01858) (0.03075)
[ 4.20196] [-1.89209]
D(LNG(-1)) -0.223322 0.054839
(0.25425) (0.42084)
[-0.87836] [ 0.13031]
D(LNG(-2)) -0.831846 0.564577
(0.29762) (0.49263)
[-2.79498] [ 1.14605]
D(LNF(-1)) 0.010080 0.050687
(0.18697) (0.30948)
[ 0.05391] [ 0.16378]
D(LNF(-2)) -0.419613 0.275814
(0.25044) (0.41453)
[-1.67551] [ 0.66536]
C 0.172999 0.018746
(0.04829) (0.07993)
[ 3.58270] [ 0.23455]
R-squared 0.523465 0.214428
Adj. R-squared 0.383307 -0.016623
Sum sq. resids 0.120932 0.331321
S.E. equation 0.084343 0.139605
F-statistic 3.734836 0.928055
Log likelihood 27.71664 16.12626
Akaike AIC -1.888403 -0.880544
Schwarz SC -1.592187 -0.584328
Mean dependent 0.069669 0.086435
S.D. dependent 0.107402 0.138459
Determinant resid covariance (dof adj.) 0.000100
Determinant resid covariance 5.48E-05
Log likelihood 47.55572
Akaike information criterion -2.917889
Schwarz criterion -2.226719
这是table的形式,图的话有几个点在圆内,一个点正好在圆的边上,不知道这样表示什么,好还是不好。
不过我主要还是想知道做完这个VEC模型之后,做格兰杰检验的滞后期怎么确定?