Research Article

Eco-Efficiency Measurement of Green Buildings and Its Spatial and Temporal Differences Based on a Three-Stage Superefficient SBM-DEA Model

Table 4

SFA regression results.

Independent variableTechnical equipment rate slack variablesWorkforce slack variablesFixed asset investment slack variablesBuilding site area slack variablesEnergy consumption slack variables

Constant term−1.34E + 042.14E + 06−1.27E + 024.28E + 044.89E + 01
(−2.30E + 03)(3.13E + 04)(−1.27E + 02)(9.65E + 03)(4.89E + 01)

Economic level−5.02E − 02−2.52E + 01−4.72E + 01−5.97E + 01−1.81E − 03
(−2.86E + 00)(4.72E + 00)(−7.04E + 00)(2.46E + 00)(1.88E + 00)

Urban share2.39E + 02−7.74E + 046.86E + 00−2.01E + 03−2.74E + 00
(2.02E + 00)(−3.24E + 01)(1.23E + 01)(−1.29E + 01)(−2.74E + 00)

Technology support−1.18E + 034.43E + 05−1.42E + 011.39E + 04−4.16E + 00
(−1.05E + 02)(3.59E + 03)(−1.42E + 01)(1.84E + 03)(−4.16E + 00)

Energy structure9.49E + 016.62E + 03−2.35E + 00−2.81E + 01−2.86E + 01
(2.10E + 00)(−1.75E + 00)(−2.86E + 00)(−1.42E − 01)(2.21E + 00)

7.58E + 071.00E + 122.83E + 049.51E + 082.99E + 03
(7.58E + 07)(1.00E + 12)(2.83E + 04)(9.51E + 08)(2.99E + 03)

1.00E + 009.60E − 011.00E + 001.00E + 001.00E + 00
(1.08E + 04)(2.52E + 01)(1.06E + 05)(1.50E + 05)(2.05E + 01)

Log−2.96E + 02−4.39E + 02−1.72E + 02−3.33E + 02−1.44E + 02

LR1.11E + 018.90E + 002.14E + 011.22E + 011.14E + 01

Note. , , represent tests passing significance levels of 1%, 5%, and 10% respectively; the test values for T are in brackets.