Null Hypothesis: Y has a unit root
Exogenous: None
Lag Length: 3 (Automatic based on SIC, MAXLAG=3)
t-Statistic Prob.*
Augmented Dickey-Fuller test statistic -0.215958 0.5875
Test critical values: 1% level -2.771926
5% level -1.974028
10% level -1.602922
*MacKinnon (1996) one-sided p-values.
Warning: Probabilities and critical values calculated for 20 observations
and may not be accurate for a sample size of 12
Augmented Dickey-Fuller Test Equation
Dependent Variable: D(Y)
Method: Least Squares
Date: 03/17/13 Time: 16:41
Sample (adjusted): 5 16
Included observations: 12 after adjustments
Variable Coefficient Std. Error t-Statistic Prob.
Y(-1) -0.004122 0.019087 -0.215958 0.8344
D(Y(-1)) 0.438554 0.231333 1.895773 0.0946
D(Y(-2)) -0.222594 0.266376 -0.835641 0.4276
D(Y(-3)) -0.280176 0.184282 -1.520367 0.1669
R-squared 0.680484 Mean dependent var 39.54833
Adjusted R-squared 0.560665 S.D. dependent var 263.4978
S.E. of regression 174.6524 Akaike info criterion 13.42467
Log likelihood -76.54804 Hannan-Quinn criter. 13.36483
Durbin-Watson stat 2.302561