HUBEI AGRICULTURAL SCIENCES ›› 2023, Vol. 62 ›› Issue (6): 63-71.doi: 10.14088/j.cnki.issn0439-8114.2023.06.012

• Resource & Environment • Previous Articles     Next Articles

Evaluation on agricultural ecological efficiency in the Gulf of Guinea based on super-efficiency SBM-Malmquist model

QU Si-yu1, WU Zhao-dan1,2, WU Qi-yue1, JING Xiao-dong1, TAN Xin-yang1   

  1. 1. Business School, Hohai University, Nanjing 211100, China;
    2. Gulf of Guinea-Cote d’ Ivoire Research Center, Ministry of Education,Nanjing 211100, China
  • Received:2022-04-22 Online:2023-06-25 Published:2023-07-18

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Abstract: Based on the panel data of 10 countries in the Gulf of Guinea from 1990 to 2019, the super-efficiency SBM model and Malmquist index method were used to calculate the agricultural ecological efficiency and analyze its spatiotemporal evolution of the Gulf of Guinea from static and dynamic perspectives. The results showed that the agricultural ecological efficiency in the Gulf of Guinea was stable from 1990 to 2019, and showed a slight downward trend in recent years. There were significant differences in agricultural ecological efficiency among countries in the Gulf of Guinea. Nigeria and Sao Tome and Principe had always been DEA effective, while Equatorial Guinea and Liberia had always been in DEA invalidity. From the decomposition of Malmquist index, agricultural ecological efficiency was mainly affected by technological progress. Countermeasures and suggestions were put forward to improve the agricultural ecological efficiency in the Gulf of Guinea and promote the cooperation between China and Guinea： Strengthen regional cooperation in ecological agriculture deepen environmental governance and promote scientific and technological innovation; build a shared agricultural data platform to form economies of scale; carry out industrial docking in the agricultural field and promote the development of green cooperation between China and Guinea.

Key words: agricultural ecological efficiency, economies of scale effect, super efficiency SBM model, Malmquist index, Gulf of Guinea

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