Are output fluctuations transitory or permanent in Ghana?
The paper examines the stationarity properties of output for Ghana during the period 1970-2011. Using the Dickey-Fuller ADF test and the Kwiatkwski, Phillips, Schmidt and shin (KPSS) test on a single time series, it is found that output series have unit root or are nonstationary in levels. The policy implication suggests that the effect of shock on output will be temporary and not have a long memory effect for output. Future studies should use other unit root model such as Phillips-Perron (PP) test and panel unit root test to test whether the findings will be collaborated.
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