Table 1 Results of Unit root test using the ADF and the PP tests
Variable
|
Model
|
Augmented Dickey Fuller test
|
Phillips Perron Test
|
Decision
|
Levels
|
First Difference
|
Levels
|
First Difference
|
Y
|
Constant
|
-1.511163
|
-10.61074***
|
-1.515691
|
-10.61288***
|
I(1)
|
Trend
|
-2.274482
|
-10.6064***
|
-2.333801
|
-10.61754***
|
None
|
2.187519
|
-10.61074***
|
2.147657
|
-10.01208***
|
TFP
|
Constant
|
-3.877764
|
-9.483763***
|
-3.817216
|
-18.37943***
|
I(1)
|
Trend
|
-4.888865
|
-9.463724***
|
-5.032597
|
-18.31104***
|
None
|
-2.185843
|
-9.511114***
|
-2.716509
|
-18.37907***
|
AGR
|
Constant
|
-2.774981
|
-15.95125***
|
-4.264219
|
-30.53975***
|
I(1)
|
Trend
|
-6.600538
|
-15.89053***
|
-6.496981
|
-30.60176***
|
None
|
-1.577409
|
-16.00189***
|
-2.395992
|
-28.56421***
|
COM
|
Constant
|
-1.058441
|
-11.81701***
|
-1.075870
|
-11.73386***
|
I(1)
|
Trend
|
-1.485340
|
-11.76336***
|
-1.534274
|
-11.68541***
|
None
|
-0.990062
|
-11.80495***
|
-0.993194
|
-11.72256***
|
DOM
|
Constant
|
1.349772
|
-3.219352***
|
3.057039
|
-8.701830***
|
I(1)
|
Trend
|
-2.224113
|
8.024973***
|
-0.442376
|
-9.042026***
|
None
|
2.225648
|
-5.440871***
|
8.455508
|
-6.039995***
|
IN(HV)
|
Constant
|
0.963449
|
-7.997722***
|
1.955677
|
-6.341920***
|
I(1)
|
Trend
|
-1.704334
|
-7.110439***
|
-0.804525
|
-6.647633***
|
None
|
1.126749
|
-6.437082***
|
3.826124
|
-6.271227***
|
IN(LM)
|
Constant
|
1.264844
|
-7.202052***
|
4.168149
|
-8.890193***
|
I(1)
|
Trend
|
-1.444843
|
8.162364***
|
-0.84532
|
-9.054676***
|
None
|
1.464648
|
-6.330771***
|
8.128539
|
-5.724387***
|
MISC
|
Constant
|
1.744929
|
-6.889955***
|
1.109274
|
-5.952123***
|
I(1)
|
Trend
|
-1.715970
|
-7.093286***
|
-0.793414
|
-5.647823***
|
None
|
2.879514
|
-6.546182***
|
3.937235
|
-6.292647***
|
Source: Author’s own computation
Note: Y, TFP, AGR, COM, DOM, IN(HV), IN(LM) and MISC represent the economic growth, total factor productivity, electricity consumption in the agricultural, commercial, domestic, industrial (HV), industrial (LV-MV) and miscellaneous sector respectively. (***), (**) and (*) indicate 1%, 5% and% level of significance, respectively
Table 2 Results of Structural parameter
Parameter
|
Coefficients
|
Agriculture
|
Commercial
|
Domestic
|
Industries (HV)
|
Industries
(LV-MV)
|
Miscellaneous
|

|
0.4503*
|
0.4971*
|
0.4424*
|
0.4827*
|
0.4107*
|
0.1898*
|

|
0.6639***
|
-0.4763
|
-0.0158
|
-0.5946***
|
1.3330**
|
0.1604
|

|
0.0723
|
0.1079
|
0.0743
|
0.1017
|
0.0811
|
0.3201
|

|
1.4981*
|
1.4878*
|
1.4682*
|
1.5098*
|
1.4935*
|
1.4735*
|
|

|
-0.3466*
|
0.4717*
|
0.0274*
|
0.5725*
|
0.6274*
|
-0.0731
|

|
1.6227*
|
1.1977*
|
0.5774*
|
1.2284*
|
1.9558*
|
4.9928*
|

|
0.6101*
|
0.6181*
|
0.6230*
|
0.6071*
|
0.6128*
|
0.6245*
|
Source: Author’s own calculations; *, ** and *** represent significance at 1*, 5% and 10% respectively.
Table 3 Results of Structural parameter
Parameter
|
Coefficients
|
Agriculture
|
Commercial
|
Domestic
|
Industries (HV)
|
Industries
(LV-MV)
|
Miscellaneous
|

|
0.4100*
|
0.4952*
|
0.4704*
|
0.4974*
|
0.3704*
|
0.2123*
|

|
0.1712***
|
0.0771*
|
-0.2047*
|
-0.0135
|
0.5240**
|
0.7987
|

|
0.0862
|
0.1027
|
0.0921
|
0.1079
|
0.0815
|
0.1117
|

|
1.3640*
|
1.3306*
|
1.3563*
|
1.3372*
|
1.4491*
|
1.3895*
|

|
-0.0317***
|
0.0278**
|
0.4627*
|
0.1115*
|
0.1771**
|
0.1535*
|

|
1.9378*
|
1.1854*
|
0.6744*
|
1.1280*
|
2.2498*
|
4.5115*
|

|
0.6949*
|
0.7127*
|
0.6984*
|
0.7063*
|
0.6497*
|
0.6772*
|
Source: Author’s own calculations; (*, ** and *** represent significance at 1*, 5% and 10% respectively.