Table 6

Results of the Adjusted Dickey Fuller (ADF) test

Dickey-Fuller test (ADF(stationary)/k: 4/N(r = 0.8))Dickey-Fuller test (ADF(stationary)/k: 4/N(r = 1))Dickey-Fuller test (ADF(stationary)/k: 4/N-0.1*t)
Tau (Observed value)−3.587−2.779−4.960
Tau (Critical value)−0.791−0.791−0.791
p-value (one-tailed)0.0320.1960.000
Alpha0.050.050.05

Note(s): Test interpretation

H0: There is a unit root for the series

Ha: There is no unit root for the series. The series is stationary

Source(s): Table by author

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