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首页> 外文期刊>Ocean & coastal management >Estimating the efficiency of complex marine systems in China's coastal regions using a network Data Envelope Analysis model
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Estimating the efficiency of complex marine systems in China's coastal regions using a network Data Envelope Analysis model

机译：使用网络数据包络分析模型估算中国沿海地区复杂海洋系统的效率

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摘要

Marine economies have become the hotspot, while coastal social and ecological problems are gaining increasing attention worldwide. Previous studies have focused on the economic, social, and ecological efficiency of single and dual systems in a composite system, thus ignoring the impact of other subsystems. Drawing on the theory of system, this study constructs a ring structure of a coniplex marine system and then selects a corresponding decision-making unit on the basis of labor and capital circulation in each subsystem to calculate the efficiency of the chain structure using a network Data Envelope Analysis (DEA) model. The results revealed that while social-ecological-economic efficiency increased, social-economic-ecological and ecological-social-economic efficiencies remained stable. By contrast, economic-social-ecological and ecological-economic-social efficiencies showed a downward trend, whereas economic-ecological-social efficiency demonstrated varying changes. The overall efficiency of the chain is highly similar to that in the first stage, although there are differences in numerical values. The study also demonstrates that the network DEA results based on the theory of system do not deny those of previous studies, but contribute to the accuracy of efficiency calculation. The differences between the overall efficiency and that in the first stage indicate that previous studies have underestimated socioeconomic and socioecological efficiencies but overestimated ecological efficiency. (C) 2017 Elsevier Ltd. All rights reserved.
机译：海洋经济已成为热点，而沿海社会和生态问题在世界范围内日益受到关注。先前的研究集中于复合系统中单系统和双系统的经济，社会和生态效率，因此忽略了其他子系统的影响。基于系统理论，本研究构建了复杂海洋系统的环形结构，然后根据每个子系统的劳动力和资本流通选择了相应的决策单位，以利用网络数据来计算链结构的效率。包络分析（DEA）模型。结果表明，在社会生态经济效率提高的同时，社会经济生态效率和生态社会经济效率保持稳定。相比之下，经济社会生态效率和生态经济社会效率呈现下降趋势，而经济生态社会效率则表现出不同的变化。链的总体效率与第一阶段的效率非常相似，尽管数值有所不同。研究还表明，基于系统理论的网络DEA结果并不否认先前的研究，但有助于提高效率计算的准确性。总体效率与第一阶段的效率之间的差异表明，先前的研究低估了社会经济和社会生态效率，但高估了生态效率。 （C）2017 Elsevier Ltd.保留所有权利。

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  • 来源
    《Ocean & coastal management》 |2017年第4期|77-91|共15页
  • 作者

    Sun Caizhi; Wang Song; Zou Wei; Wang Zeyu;

  • 作者单位

    East China Normal Univ, Sch Urban & Reg Sci, 500 Dongchuan Rd, Shanghai 200062, Peoples R China;

    Liaoning Normal Univ, Ctr Studies Marine Econ & Sustainable Dev, 850 Huanghe Rd, Dalian 116029, Peoples R China;

    Liaoning Normal Univ, Ctr Studies Marine Econ & Sustainable Dev, 850 Huanghe Rd, Dalian 116029, Peoples R China|Liaoning Normal Univ, Sch Foreign Languages, 850 Huanghe Rd, Dalian 116029, Peoples R China;

    Liaoning Normal Univ, Ctr Studies Marine Econ & Sustainable Dev, 850 Huanghe Rd, Dalian 116029, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Efficiency calculation; Marine complex system; Network DEA; Coastal China;

    机译：效率计算海洋复杂系统网络DEA中国沿海;

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