Null Hypothesis: Unit root (individual unit root process) | |||
Series: D(FREQ) |
| ||
Date: 03/28/16 Time: 09:33 |
| ||
Sample: 1 144 |
|
| |
Exogenous variables: Individual effects | |||
Newey-West automatic bandwidth selection and Bartlett kernel | |||
Total (balanced) observations: 140 | |||
Cross-sections included: 2 |
| ||
Method | Statistic | Prob.** | |
PP-Fisher Chi-square | 49.4345 | 0.0000 | |
PP-Choi Z-stat | −6.22505 | 0.0000 | |
**Probabilities for Fisher tests are computed using an | |||
asymptotic Chi-square distribution. All other tests | |||
assume asymptotic normality. | |||
Intermediate Phillips-Perron test results D(FREQ) | |||
Cross |
|
|
|
section | Prob. | Bandwidth | Obs |
FFV | 0.0000 | 4.0 | 70 |
JLX | 0.0001 | 1.0 | 70 |