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Table 3 Summary unit root test

From: The impact of government policies on Nigeria economic growth (case of fiscal, monetary and trade policies)

Variables ADF DF PP
At level  
LGDPPC − 0.60 − 0.28 − 0.29
LGEXP ***− 4.64 − 1.02 ***− 4.66
LGREV − 2.47 − 0.30 ***− 4.23
INTR **− 3.61 **− 2.18 ***− 3.69
MS *− 2.62 − 1.16 − 2.21
TRO − 2.91 − 1.61 0.06
LGCF ***− 3.72 − 1.16 ***0.01
First difference
LGDPPC ***− 0.41 ***− 3.53 ***− 4.06
LGEXP ***− 7.31 ***− 7.42 ***− 7.13
LGREV ***− 5.91 ***− 5.09 ***− 5.91
INTR ***− 6.89 ***− 4.09 **3.49
MS **− 3.48 ***− 3.16 ***− 9.47
TRO ***− 7.37 ***− 7.44 ***− 7.59
INST*FD ***− 4.09 ***− 4.09 ***− 4.27
  1. *10%,**5%, ***1%