PROGRESS IN GEOGRAPHY ›› 2018, Vol. 37 ›› Issue (2): 255-265.doi: 10.18306/dlkxjz.2018.02.008

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Eco-efficiency in the Bohai Rim area based on undesirable outputs and threshold regression model

Zenglin HAN(), Ailing WU, Fei PENG, Jiaze SUN, Kang XIA   

  1. Marin Economy and Sustainable Development Research Center, Liaoning Normal University, Dalian 116029, Liaoning, China
  • Received:2017-06-15 Revised:2017-11-20 Online:2018-02-28 Published:2018-02-28
  • Supported by:
    National Natural Science Foundation of China, No.41601114;Humanities and Social Science Youth Foundation of Ministry of Education, No.16YJC790080;Social Science Fund of Liaoning Province, No.L17CJL001;Fund of Education Department of Liaoning Province, No.JZ201783606


Using the slack based measure (SBM) model of undesirable outputs, we measured the eco-efficiency of 44 cities in the Bohai Rim area from 2005 to 2015, depicted the spatiotemporal change characteristics, and analyzed the influencing factors with panel threshold regression model for stimulating ecological civilization construction and sustainable development. The results are as follows: (1) Eco-efficiency value is generally overestimated without considering undesirable outputs, indicating that undesirable outputs in the process of economy activities reduced true economy value fairly and considering undesirable outputs is reasonable; (2) From 2005 to 2010, the eco-efficiency types generally improved, but they deteriorated from 2010 to 2015, possibly relating to the transform of economic development mode and driving forces; (3) There exits interprovincial differentiation and imbalance in the number and spatial distribution of eco-efficiency types and a clear spatial aggregation character in regions of same eco-efficiency type; (4) Double threshold character appears in the relation of technology level, city scale, openness to the outside world, and environmental regulation for eco-efficiency. Industrial structure has a vital impact on regional eco-efficiency. Improving the capabilities of technology uptake and re-innovation, joint pollution control, and the quality of population, strengthening the "technical effect" heightening positive influences of threshold variables on ecological efficiency in the Bohai Rim area, and optimizing industrial structure and information system construction are also important methods for improving ecological efficiency.

Key words: eco-efficiency, undesirable output, panel threshold, Bohai Rim area