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Open AccessArticle

Efficiency Evaluation of Water Consumption in a Chinese Province-Level Region Based on Data Envelopment Analysis

by Ping Hu 1,2, Na Chen 1, Yongjun Li 3,* and Qiwei Xie 2,*
1
Faculty of Mathematics and Statistics, Hubei University, Wuhan 430062, China
2
School of Economics and Management, Beijing University of Technology, Beijing 100000, China
3
School of Management, University of Science and Technology of China, Hefei 230000, China
*
Authors to whom correspondence should be addressed.
Water 2018, 10(6), 793; https://doi.org/10.3390/w10060793
Received: 21 May 2018 / Revised: 7 June 2018 / Accepted: 8 June 2018 / Published: 15 June 2018
(This article belongs to the Section Water Resources Management and Governance)
Due to the large volume of sewage in China, the efficiency of water consumption evaluated by the traditional model may be inaccurate. This paper evaluates the water consumption efficiency more scientifically. First, this paper uses the CCR model to evaluate the resource efficiency and environmental efficiency separately. The latter is generally lower than the former, which means the issue of water pollution is more serious than the problem of water resource consumption. Then, the water consumption efficiency is integrally evaluated by an eco-inefficiency model which focuses on undesirable outputs. The results are in good agreement with the results of the CCR model: (1) Only Beijing, Tianjin, and Shanghai are eco-efficient in terms of water consumption, water consumption efficiency in the southeastern coastal areas is higher than in the Midwest, and the overall water environment is bad; (2) China needs to focus on reducing industrial wastewater; (3) the output of water consumption has a lot of room for improvement; and (4) the output improvement schemes of all provinces have some similarities and are related to many features. So, this paper has made a clustering analysis of the improvement schemes and given detailed suggestions for improving the eco-efficiency of water consumption in China according to the clustering result. View Full-Text
Keywords: data envelopment analysis; water efficiency; China; output improvement; water consumption data envelopment analysis; water efficiency; China; output improvement; water consumption
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Hu, P.; Chen, N.; Li, Y.; Xie, Q. Efficiency Evaluation of Water Consumption in a Chinese Province-Level Region Based on Data Envelopment Analysis. Water 2018, 10, 793.

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