Forecasting China’s CO₂ Emissions for Energy Consumption Based on Cointegration Approach

Table 4

(a) Results of Johansen cointegration test (Trace)

the null hypothesis: the number of cointegrating vectors	Eigenvalues	Trace Statistics	threshold value of confidence 5%	P values	Test results
None	0.690327	120.2196	69.81889	0.0000	decline
maximum 1	0.376680	48.71311	47.85613	0.0414	accept
maximum 2	0.173818	19.87870	29.79707	0.4311	decline
maximum 3	0.115112	8.231362	15.49471	0.4410	decline
maximum 4	0.012567	0.771439	3.841466	0.3798	decline

Note: P=0.001; denotes acceptance of the original hypothesis at the 5% level of significance.

(b) Results of Johansen cointegration test (Max-Eigen)

the null hypothesis: the number of cointegrating vectors	Eigenvalues	Max-Eigen Statistics	threshold value of confidence 5%	P values	Test results
None	0.690327	71.50651	33.87687	0.0000	accept
maximum 1	0.376680	28.83441	27.58434	0.0344	decline
maximum 2	0.173818	11.64733	21.13162	0.5827	decline
maximum 3	0.115112	7.459923	14.26460	0.4363	decline
maximum 4	0.012567	0.771439	3.841466	0.3798	decline

Note: P=0.001; denotes acceptance of the original hypothesis at the 5% level of significance.