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Research article - Peer-reviewed, 2023

Extension services and the technical efficiency of crop-specific farms in China

Liu, Qian; Jiang, Yongmu; Lagerkvist, Carl-Johan; Huang, Wei


China operates the world's largest system of extension services, but knowledge about its effectiveness is limited. Using farm survey data and a stochastic meta-frontier production function, this study investigates the impact of extension services on the technical efficiency of crop-specific farms in China. Results reveal that extension services have a statistically significant and strongly correlated relationship with farm technical efficiency and that different sources of extension have an inconsistent impact on it. Crop-specific farms require distinct extension provision whose content is designed to match farmers' needs, and hence a pluralistic and well-functioning system of extension provision should be developed.


crop-specific farms; extension services; stochastic metafrontier analysis; technical efficiency

Published in

Applied Economic Perspectives and Policy
2023, Volume: 45, number: 1, pages: 436-459

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    • Sustainable Development Goals

      SDG1 No poverty
      SDG4 Quality education

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