Table 3 Unit root tests ACC ∆REV PPE... | Emerald Publishing

Table 3

Unit root tests

	ACC	∆REV	PPE	∆REV–∆REC	∆CFO	ROA
Augmented Dickey–Fuller	44.7862***	34.4565**	41.9647***	34.9811**	20.0497**	74.9379***
Phillip–Perron	52.6707***	53.1427***	74.1748***	72.9465***	64.69743***	10.9624***
Im, Pesaran and Shin	1.30147	−0.54973	−1.09947*	−0.83479	−0.62149	0.79617
Levin, Lin and Chu	−11.2076***	−6.09471***	−7.88471***	−8.4192***	−3.99417***	−25.65841***

	ACC	∆REV	PPE	∆REV–∆REC	∆CFO	ROA
Augmented Dickey–Fuller	44.7862***	34.4565**	41.9647***	34.9811**	20.0497**	74.9379***
Phillip–Perron	52.6707***	53.1427***	74.1748***	72.9465***	64.69743***	10.9624***
Im, Pesaran and Shin	1.30147	−0.54973	−1.09947*	−0.83479	−0.62149	0.79617
Levin, Lin and Chu	−11.2076***	−6.09471***	−7.88471***	−8.4192***	−3.99417***	−25.65841***

Note(s): *, ** and *** indicate significance at the 10, 5 and 1% levels, respectively

Source(s): Authors' own calculations