Analysis Model Design on the Impact of Foreign Investment on China’s Economic Growth

Table 5

Unit root test results.

Variable quantity	ADF	Type of inspection	Critical value			Whether smooth
		(c, t, n)	1%	5%	10%
Y	1.712258	(c, 0, 1)	−3.857386	−3.040391	−2.660551	No
DY	−5.478450	(c, 0, 1)	−3.920350	−3.065585	−2.673459	Yes
FDI	−0.801904	(c, 0, 1)	−3.886751	−3.052169	−2.666593	No
DFDI	−3.692204	(c, 0, 1)	−3.959148	−3.081002	−2.681330	Yes