| Mean | Standard error SE | Median | Min | Max |
---|---|---|---|---|---|
Pooled technical efficiency TE | 0.792 | 0.030 | 0.828 | 0.470 | 0.980 |
Pure/managerial TE | 0.876 | 0.035 | 0.935 | 0.590 | 0.976 |
Scale TE | 0.892 | 0.027 | 0.940 | 0.670 | 0.981 |
Data envelopment analysis DEA | 0.791 | 0.035 | 0.846 | 0.470 | 0.980 |
Stochastic frontier analysis SFA | 0.801 | 0.036 | 0.776 | 0.755 | 0.871 |
Upper-middle income | 0.796 | 0.031 | 0.800 | 0.557 | 0.980 |
High income | 0.778 | 0.104 | 0.859 | 0.470 | 0.923 |