Research Article
Efficiency Evaluation of Bus Transport Operations Given Exogenous Environmental Factors
Table 4
SFA model parameters and estimation results.
| | Slacks | Operating mileage | Number of vehicles | Annual employees |
| | Constant term | −4049.108 (−4037.919) | −188.7556 (−188.7675) | −3595.1267 (−3594.9366) | | Population density | −1341.328 (−1336.227) | −79.0747 (−79.0833) | 258.5492 (258.5331) | | Number of taxis | −0.013 (−0.214) | −0.0024 (−1.1804) | 0.0407 (3.9024) | | Passenger volume of rail transport | −0.001 (−0.324) | −0.0005 (−1.2203) | −0.0041 (−1.7184) | | GDP per capita | 0.033 (7.260) | 0.0004 (1.5088) | 0.0223 (3.5629) | | Car ownership | 7.116 (6.768) | 1.0107 (26.3293) | −0.9459 (−0.5920) | | Sigma-squared | 12664230.000 | 246133.040 | 4847562.800 | | Gamma | 0.999 | 0.999 | 1.0000 | | Log likelihood | −264.729 | −203.605 | −254.583 | | LR test of the one-side error | 21.224 | 22.486 | 13.576 |
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;;. The value of T is in brackets. |
