Improved DEA model-based port efficiency evaluation and pollution emission right distribution determination method

Abstract

The invention discloses an improved DEA model-based port efficiency evaluation and pollution emission right distribution determination method. The method comprises the following steps: firstly, collecting element input, expected output and unexpected output of a port, and calculating the port environment efficiency under different conditions of environment control and non-environment control; secondly, taking different change proportions for the input, the expected output and the unexpected output, and calculating the expected output and the output loss which are possibly increased to the maximum extent by utilizing comprehensive production models with different preferences under environmental control and non-environmental control; then, in combination with the pollutant emission coefficient and the preference coefficient, applying the change of different proportions of input and output to the comprehensive emission model, and evaluating the pollutant emission level when the input and output are changed in different proportions; and finally, re-evaluating the efficiency of different pollution control targets by using the comprehensive distribution model, and comparing the output loss between pollutant redistribution and non-redistribution. According to the method, the port efficiency and the pollutant discharge right distribution can be accurately and effectively evaluated.

Description

technical field [0001] The invention relates to the technical field of port efficiency evaluation, in particular to a method for determining port efficiency evaluation and allocation of pollution emission rights based on an improved DEA model. [0002] technical background [0003] The rapid development of the shipping industry not only facilitates trade and transportation, but also brings about an increase in GDP. But ports, one of the main sources of air pollution emissions, are under pressure to improve air quality. The convening of the "2020 Green Port Conference" further focuses on building a clean and low-carbon port energy system, strengthening resource conservation, recycling and ecological protection, striving to achieve green development, circular development, and low-carbon economy of ports, and promoting the construction of world-class ports. Sustainable development is urgent. The efficiency of the port reflects whether the port management measures and resource ...

AI Technical Summary

Problems solved by technology

[0006] In view of the deficiencies in the current methods of determining the efficiency of Chinese ports and the allocation of pollution emission rights, such as ignoring non-environmental control factors, it is wrong to directly evaluate the environmental efficiency of ports based on environmental control factors, ignoring input indicators, expected output and Unexpected output indicators are not in equal proportions, and the evaluation results are inconsistent with the facts. The present invention proposes a method for determining port efficiency evaluation and pollution emission rights allocation based on the improved DEA model, aiming to comprehensively evaluate the environmental efficiency of the port and the The method of determining the allocation of pollution emission rights among the parties in order to achieve economic goals

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