Table 5: Regression results for the key drivers affecting energy supply security.

VariableTotal for 14 provincesNorthwestNortheastSouthwestSoutheast

C−1.164 (−3.2652)−1.627 (−2.7991)−1.876 (−2.14245)−0.739 (−2.2688)−0.147 (−2.1791)
αd10.194 (2.1433)0.125 (2.1602)0.019 (3.0201)0.008 (2.5404)0.010 (3.5112)
αd20.128 (2.9011)0.346 (2.1124)0.152 (2.7258)0.009 (5.4797)0.073 (3.9796)
αd30.128 (3.3730)0.085 (3.3603)0.165 (3.5989)0.0238 (2.0333)0.021 (3.6892)
αd40.124 (3.4984)0.051 (2.3728)0.128 (4.0961)0.142 (3.0561)0.027 (2.3035)
αd50.008 (3.9717)0.075 (2.9861)0.237 (5.3084)0.253 (2.6849)0.179 (2.1721)
αd6−0.058 (−5.5902)−0.059 (−3.3775)−0.218 (−2.0447)−0.188 (−3.1646)−0.150 (−6.4653)
αd8−0.039 (−2.3665)−0.033 (−2.9515)−0.089 (−2.5085)−0.091 (−5.0034)−0.042 (−4.3981)
αd100.034 (2.0880)0.023 (2.8395)0.082 (3.5971)0.146 (5.0034)0.257 (2.2479)
αd11−0.028 (−2.5389)−0.040 (−2.3480)−0.018 (−3.5998)−0.096 (−2.7866)−0.029 (−3.3811)
R20.91620.89980.93570.89690.9861
AdjR20.90210.83540.90200.80320.9789
F62.115849.325127.783719.571136.077
Sample number15466332233