This paper, using the ultra-efficiency DEA-Tobit model, takes 16 listed port enterprises as an example to measure the port efficiency from 2015 to 2021. Based on the unexpected output, the measured port enterprise operation efficiency is more objective, and provides reasonable suggestions for the improvement of the port operation efficiency. The research results show that: (1) the operating efficiency of port enterprises is increasing, but the growth rate is slow; (2) the operating efficiency is limited by the growth of technical efficiency; (3) the fixed assets, management expenses and R & D expenses promote the port operation efficiency, while the paid-in capital, operating cost and carbon emission inhibit the port operation efficiency.


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    Title :

    Empirical analysis of DEA-Tobit model based on unexpected output for port operation efficiency


    Contributors:
    Wang, Ruixia (author) / Hu, Jiankun (author)

    Conference:

    Second International Conference on Green Communication, Network, and Internet of Things (CNIoT 2022) ; 2022 ; Xiangtan,China


    Published in:

    Proc. SPIE ; 12586


    Publication date :

    2023-03-08





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English