Research Article
Additive Slack-Based Measure for a Two-Stage Structure with Shared Inputs and Undesirable Feedback
Table 4
Efficiency evaluation of 30 regions in China.
| DMU | Region | Stage1 | Stage 2 | Overall | Production | Waste disposal |
| 1 | Beijing | 1 | 0.274881 | 0.63744 | 2 | Tianjin | 1 | 0.359507 | 0.679754 | 3 | Hebei | 1 | 0.379613 | 0.689806 | 4 | Shanghai | 1 | 0.217759 | 0.60888 | 5 | Jiangsu | 1 | 0.485474 | 0.742737 | 6 | Zhejiang | 1 | 1 | 1 | 7 | Fujian | 1 | 0.204793 | 0.602396 | 8 | Shandong | 1 | 0.351821 | 0.675911 | 9 | Guangdong | 1 | 0.173473 | 0.586736 | 10 | Hainan | 1 | 1 | 1 | 11 | Shanxi | 1 | 0.261725 | 0.630862 | 12 | Anhui | 0.626949 | 0.405016 | 0.515982 | 13 | Jiangxi | 1 | 0.495416 | 0.747708 | 14 | Henan | 1 | 0.266204 | 0.633101 | 15 | Hubei | 0.558534 | 0.409545 | 0.48404 | 16 | Hunan | 1 | 0.477065 | 0.738532 | 17 | Inner Mongolia | 1 | 0.250804 | 0.625402 | 18 | Guangxi | 1 | 0.358622 | 0.679311 | 19 | Chongqing | 0.615311 | 0.334625 | 0.474968 | 20 | Sichuan | 0.623692 | 0.241739 | 0.432715 | 21 | Guizhou | 1 | 0.407038 | 0.703519 | 22 | Yunnan | 1 | 1 | 1 | 23 | Shaanxi | 0.584079 | 0.27353 | 0.428804 | 24 | Gansu | 0.540044 | 0.56527 | 0.552656 | 25 | Qinghai | 0.658815 | 0.512974 | 0.585894 | 26 | Ningxia | 1 | 0.370418 | 0.685209 | 27 | Xinjiang | 0.544786 | 0.414857 | 0.479822 | 28 | Liaoning | 1 | 0.161266 | 0.580633 | 29 | Jilin | 0.636337 | 0.454661 | 0.545499 | 30 | Heilongjiang | 0.549241 | 0.374855 | 0.462048 | Mean | ā | 0.864593 | 0.416098 | 0.640346 |
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