Table A16 VIF test for multicollinearity...

Table A16

VIF test for multicollinearity

Variable	VIF	1/VIF
In system shutdowns	4.58	0.21
L1	3.35	0.29
L2	3.30	0.30
D. technical faults	3.19	0.31
L1	3.01	0.33
L2	2.76	0.36
L3	2.51	0.39
In rainfall
L1	2.38	0.42
L2	2.29	0.43
D. technical faults	2.20	0.45
L4	2.20	0.45
In failed equipment	2.03	0.49
L1	2.03	0.49
In rainfall	2.00	0.49
In duration of outages	1.97	0.50
L1	1.97	0.50
D. trees	1.95	0.51
In rainfall	1.75	0.57
L3	1.75	0.57
D. trees	1.68	0.59
L1	1.68	0.59
D. theft and vandalism	1.54	0.65
L1	1.54	0.65
In failed equipment	1.46	0.68
D. theft and vandalism	1.40	0.71
System overload	1.34	0.74
L1	1.29	0.77
D. maintenance and repair costs	1.26	0.79
L1	1.10	0.90
Mean VIF	2.19

Variable	VIF	1/VIF
In system shutdowns	4.58	0.21
L1	3.35	0.29
L2	3.30	0.30
D. technical faults	3.19	0.31
L1	3.01	0.33
L2	2.76	0.36
L3	2.51	0.39
In rainfall
L1	2.38	0.42
L2	2.29	0.43
D. technical faults	2.20	0.45
L4	2.20	0.45
In failed equipment	2.03	0.49
L1	2.03	0.49
In rainfall	2.00	0.49
In duration of outages	1.97	0.50
L1	1.97	0.50
D. trees	1.95	0.51
In rainfall	1.75	0.57
L3	1.75	0.57
D. trees	1.68	0.59
L1	1.68	0.59
D. theft and vandalism	1.54	0.65
L1	1.54	0.65
In failed equipment	1.46	0.68
D. theft and vandalism	1.40	0.71
System overload	1.34	0.74
L1	1.29	0.77
D. maintenance and repair costs	1.26	0.79
L1	1.10	0.90
Mean VIF	2.19

Source(s): STATA software 17 output

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