From: Economic growth, energy consumption and environmental degradation nexus in heterogeneous countries: does education matter?
Test
High-Income
Upper-Middle-Income
Lower-Middle-Income
Low-Income
Breusch-Pagan LM
5312.836***
2331.681***
6742.483***
1106.464***
Pesaran scaled LM
158.967***
103.527***
231.474***
90.561***
Pesaran CD
19.882***
18.327***
71.136***
30.291***