如果所有变量为平稳变量，直接做方程估计
如果所有变量同为非平稳变量，而且同阶单整，就直接对原变量做协整估计

2# linger1213

弱问，这样的结果说明什么

Null Hypothesis: Unit root (individual unit root process)     
Series: HUMANPER_BJ, HUMANPER_TJ, HUMANPER_HB,   
        HUMANPER_LN, HUMANPER_SD, HUMANPER_SH,   
        HUMANPER_JS, HUMANPER_ZJ, HUMANPER_GD   
Date: 08/06/09   Time: 21:59   
Sample: 1998 2007   
Exogenous variables: Individual effects   
Automatic selection of maximum lags   
Automatic lag length selection based on SIC: 0 to 1   
Total number of observations: 77   
Cross-sections included: 9   
   
Method   Statistic Prob.**
ADF - Fisher Chi-square    27.0343  0.0784
ADF - Choi Z-stat   -1.80151  0.0358
   
** Probabilities for Fisher tests are computed using an asymptotic Chi   
        -square distribution. All other tests assume asymptotic normality.   
   
Intermediate ADF test results HUMANPER?   
   
   
Series Prob. Lag   Max Lag Obs
HUMANPER_BJ  0.4712  0  1  9
HUMANPER_TJ  0.1301  1  1  8
HUMANPER_HB  0.6544  0  1  9
HUMANPER_LN  0.0419  0  1  9
HUMANPER_SD  0.4648  1  1  8
HUMANPER_SH  0.2096  1  1  8
HUMANPER_JS  0.6745  0  1  9
HUMANPER_ZJ  0.1525  0  1  9
HUMANPER_GD  0.0800  1  1  8
   
本文来自: 人大经济论坛 详细出处参考：http://www.pinggu.org/bbs/viewthread.php?tid=514981&page=1&from^^uid=352488

感谢楼主的分享