Research Article

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

Table 8

The stationarity test after taking the logarithm.

Variable quantityADFType of inspectionCritical valueWhether smooth
(c, t,n)1%5%10%

lnY−1.917836(c, 0,1)−3.857386−3.040391−2.660551No
DlnY−5.503037(c, 0,1)−3.920350−3.065585−2.673459Yes
lnFDI−2.114963(c, 0,1)−3.857386−3.040391−2.660551No
DlnFDI−5.704385(c, 0,1)−3.920350−3.065585−2.673459Yes