Table 6 Technical efficiency estimates across SPF models
SPF model | Pooled | Members | Nonmember | Change (%) | t-test of means |
|---|---|---|---|---|---|
Mean | Mean | Mean | |||
Unmatched conventional | |||||
Technical efficiency | 0.817 (0.00) | 0.848 (0.01) | 0.803 (0.01) | 5.60 | 4.83*** |
Metafrontier technical efficiency (MTE) | 0.811 (0.00) | 0.843 (0.01) | 0.800 (0.01) | 5.38 | 4.67*** |
Technological gap ratio (TGR) | Ā | 0.994 (0.00) | 0.996 (0.00) | Ā | 3.24*** |
Unmatched selection corrected | |||||
Technical efficiency | 0.817 (0.00) | 0.839 (0.01) | 0.808 (0.00) | 3.84 | 3.68*** |
Metafrontier technical efficiency (MTE) | 0.813 (0.00) | 0.834 (0.01) | 0.805 (0.00) | 3.60 | 3.48*** |
Technological gap ratio (TGR) | Ā | 0.994 (0.00) | 0.996 (0.00) | Ā | 3.66*** |
MTE difference (%) | 0.25 | āāā1.08 | 0.62 | Ā | Ā |
Matched conventional | |||||
Technical efficiency | 0.813 (0.00) | 0.842 (0.01) | 0.803 (0.01) | 4.86 | 4.05*** |
Metafrontier technical efficiency (MTE) | 0.809 (0.00) | 0.836 (0.01) | 0.800 (0.01) | 4.50 | 3.84*** |
Technological gap ratio (TGR) | Ā | 0.994 (0.00) | 0.996 (0.00) | Ā | 4.05*** |
Matched selection corrected | |||||
Technical efficiency | 0.814 (0.00) | 0.831 (0.01) | 0.808 (0.00) | 2.85 | 2.66*** |
Metafrontier technical efficiency (MTE) | 0.810 (0.00) | 0.826 (0.01) | 0.805 (0.00) | 2.61 | 2.39** |
Technological gap ratio (TGR) | Ā | 0.993 (0.00) | 0.996 (0.00) | Ā | 5.00*** |
MTE difference (%) | 0.12 | āāā1.21 | 0.62 | Ā | Ā |