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要素禀赋约束下中国粳稻生产率的地区差异及收敛性分析

The regional difference and convergence analysis of the productivity of japonica rice under the constraint of factor endowment

  • 摘要: 本文根据1999-2013年中国12个粳稻主产区的省际面板数据,运用DEA-Malmquist对各地区粳稻的全要素生产率(Total Factor Productivity, TFP)其分解项进行了测算与分解。结果表明:粳稻主产区15 a内TFP的平均增长率为4.59%,技术进步变化指数的平均增长率为5.14%,没有大幅上升的原因主要是因为技术效率的下滑。进一步对省际间做收敛性检验,发现粳稻产区生产率不存在σ收敛,但是存在绝对β收敛和条件β收敛。缩小省际间的技术效率差异是提高中国粳稻生产效率的关键,要加大技术投入,改善规模效率。根据不同地区的要素禀赋特征制定实现路径:东北粳稻主产区适合发展农业机械化的土地规模经营;长江中下游粳稻产区应该加大资本投入,推动技术扩散,发展生产性服务的规模经营。

     

    Abstract: Based on the panel data of japonica rice production in 12 provinces in China from 1999 to 2013, this paper adopts a DEA-based Malmquist productivity index method to measure and decompose TFP (Total Factor Productivity) growth. Results show that the TFP index of main production areas has shown an average annual increase of 4.59% within 15 years, and the technological progress also has an average decrease of 5.14%. In addition, the TFP was also influenced by the decline of technical progress. Further convergence test indicated that the TFP of production areas does not exist σ convergence trend, but there is an absolute convergence and conditional convergence. To narrow the differences of technical efficiency among different provinces, it is critical to improve the efficiency, to increase technology investment, and to enlarge the production scale. Policy suggestions include: 1) to formulate different development paths according to the different regional characteristics of factor endowments; 2) the main producing areas of the northeast of China should adopt the land scale management of agricultural mechanization; while in the middle and lower regions of the Yangtze River, the capital investment should be increased to promote the technology diffusion and the scale of the development of production services.

     

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