Table 4 Unit root test CIPS CADF Level... | Emerald Publishing

Table 4

Unit root test

	CIPS		CADF
	Level	1st difference	Level	1st difference
CO₂	−1.850	−4.790^***	2.461	−1.376^**
ET	−2.095	−4.695^***	0.267	−2.099^***
TI	−3.722	−5.129^***	−0.287	−4.550^***
ICT	−2.534	−5.246^***	0.095	−3.182^***
GDP	−4.239	−6.225^***	−1.476	−3.924^***

	CIPS		CADF
	Level	1st difference	Level	1st difference
CO₂	−1.850	−4.790^***	2.461	−1.376^**
ET	−2.095	−4.695^***	0.267	−2.099^***
TI	−3.722	−5.129^***	−0.287	−4.550^***
ICT	−2.534	−5.246^***	0.095	−3.182^***
GDP	−4.239	−6.225^***	−1.476	−3.924^***

Note(s): ^***, ^** and ^* represents 1%, 5% and 10% significance level

Source(s): Authors’ own work