Analysis of the Strategic Emission-Based Energy Policies of Developing and Developed Economies with Twin Prediction Model

Table 8

Mean difference test results.

Groups	Mean difference under BJ method				Mean difference under ANN method
	Mean (agri)	Mean (methane)	Corr. coefficient	t (agri−methane)	Mean (agri)	Mean (methane)	Corr. coefficient	t (agri−methane)
OECD	0.05539	−0.00813	−0.98	2.70	5.945	−0.1584	0.29	1.74
Upper middle	0.04064	0.01379	0.97	7.40	5.264	1.125	0.38	1.85
Middle	0.03892	0.0119	0.99	17.06	4.085	0.904	0.175	1.46
Lower middle	0.0420	0.0079	0.78	24.12	7.578	1.345	−0.003	2.06
Low	0.0495	0.0154	0.99	28.94	3.075	0.838	0.28	1.08

Note. Bold marks indicate significant results at 5% level. Source: authors’ calculations.