Research Article
Additive Slack-Based Measure for a Two-Stage Structure with Shared Inputs and Undesirable Feedback
Table 7
Area-wise efficiency evaluation results in the Central area.
| | Area | DMU | Region | Stage 1 | Stage 2 | Overall | | Production | Waste disposal |
| | Central area | 11 | Shanxi | 1 | 1 | 1 | | 12 | Anhui | 1 | 1 | 1 | | 13 | Jiangxi | 1 | 1 | 1 | | 14 | Henan | 1 | 0.560790 | 0.780395 | | 15 | Hubei | 1 | 0.783032 | 0.891516 | | 16 | Hunan | 1 | 1 | 1 | | | Mean | 1 | 0.890637 | 0.945318 |
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