怎么觉得跟别人做的ADF检验不一样啊?
Null Hypothesis: Unit root (individual unit root process)
Series: WAGE, PRODUCTIVITY
Date: 06/13/15 Time: 19:13
Sample: 1985 2013
Exogenous variables: None
Automatic selection of maximum lags
Automatic selection of lags based on SIC: 1 to 5
Total number of observations: 50
Cross-sections included: 2
Method Statistic Prob.**
ADF - Fisher Chi-square 0.06539 0.9995
ADF - Choi Z-stat 3.65100 0.9999
** Probabilities for Fisher tests are computed using an asymptotic Chi
-square distribution. All other tests assume asymptotic normality.
Intermediate ADF test results UNTITLED
Series Prob. Lag Max Lag Obs
WAGE 0.9683 1 6 27
PRODUCTIVITY 0.9995 5 6 23