[Retracted] Analysis of the Coupled and Coordinated Relationship between Emission of Carbon: International Growth of Economy-Conservation of the Environment in China

Table 2

Panel unit root test results.

	Inc	Lngdp	Lngdp2
LLC test	−2.1866	−2.0051	−1.9832
Fisher-PP test	−1.7823	−1.6349	−0.7841
Fisher-ADF test	−1.5642	−0.9842	−0.7648