Technical and Scale Efficiency in Spanish Urban Transport: Estimating with Data Envelopment Analysis

Table 5

Regression of the BCC efficiency index on the external circumstances.

Variable	Coefficient	P-value
Constant	270.3482	.010
Population density	− 0.0 113 088	.030
Rent per capita	− 1.74 293	.616
Private vehicles in circulation	0.0000 792	.115
Average commercial speed	− 2.444 109	.414
Coeff. of intensity in rush hours	− 128.2 061	.033
km per routes served	− 0.0000 417	.463
Dummy existence alternative	− 21.95 711	.410
Log likelihood = −91.816 105
LR Chi-square = 15.98, P-value = .0253
Pseudo 𝑅^2=0.0800