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A Two-Stage Data Envelopment Analysis Approach Incorporating the Global Bounded Adjustment Measure to Evaluate the Efficiency of Medical Waste Recycling Systems with Undesirable Inputs and Outputs

Author

Listed:
  • Wen-Jing Song

    (Transportation Institute, Inner Mongolia University, Hohhot 010030, China)

  • Jian-Wei Ren

    (Transportation Institute, Inner Mongolia University, Hohhot 010030, China)

  • Chun-Hua Chen

    (College of Economics and Management, Inner Mongolia Agricultural University, Hohhot 010018, China)

  • Chen-Xi Feng

    (Transportation Institute, Inner Mongolia University, Hohhot 010030, China)

  • Lin-Qiang Li

    (Transportation Institute, Inner Mongolia University, Hohhot 010030, China)

  • Chong-Yu Ma

    (Transportation Institute, Inner Mongolia University, Hohhot 010030, China)

Abstract

With the ever-increasing focus on sustainable development, recycling waste and renewable use of waste products has earned immense consideration from academics and policy makers. The serious pollution, complex types, and strong infectivity of medical waste have brought serious challenges to management. Although several researchers have addressed the issue by optimizing medical waste management networks and systems, there is still a significant gap in systematically evaluating the efficiency of medical waste recycling systems. Therefore, this paper proposes a two-stage data envelopment analysis (DEA) approach that combines the virtual frontier and the global bounded adjustment measure (BAM-VF-G), considering both undesirable inputs and outputs. In the first stage, the BAM-G model is used to evaluate the efficiency of medical waste recycling systems, and the BAM-VF-G model is used to further rank super-efficient medical waste recycling systems. In the second stage, two types of efficiency decomposition models are proposed. The first type of models decompose unified efficiency into production efficiency (PE) and environment efficiency (EE). Depending upon the system structure, the second type of models decompose unified efficiency into the efficiency of the medical waste collection and transport subsystem (MWCS) and the efficiency of the medical waste treatment subsystem (MWTS). The novel approach is used to measure the efficiency of the medical waste recycling systems in China’s new first-tier cities, and we find that (1) Foshan ranks the highest in efficiency, followed by Tianjin and Qingdao, with efficiency values of 0.386, 0.180, and 0.130, respectively; (2) the EE lacks resilience and fluctuated the most from 2017 to 2022; and (3) the efficiency of MWCSs has always been lower than that of MWTSs and is a critical factor inhibiting the overall efficiency of medical waste recycling systems.

Suggested Citation

  • Wen-Jing Song & Jian-Wei Ren & Chun-Hua Chen & Chen-Xi Feng & Lin-Qiang Li & Chong-Yu Ma, 2024. "A Two-Stage Data Envelopment Analysis Approach Incorporating the Global Bounded Adjustment Measure to Evaluate the Efficiency of Medical Waste Recycling Systems with Undesirable Inputs and Outputs," Sustainability, MDPI, vol. 16(10), pages 1-33, May.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:10:p:4023-:d:1392555
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    References listed on IDEAS

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