我国粮食生产力的空间差距分解及影响因素分析——基于单要素生产力视角

发布时间：2018-01-26 22:20

本文关键词： 单要素生产力粮食单产水平粮食劳动生产率空间差距分解空间回归分析　出处：《农业现代化研究》2017年04期 　论文类型：期刊论文

【摘要】：能否有效提升单要素生产力是保障我国粮食安全以及提升全要素生产力的基础所在。本文以我国30个省区2003-2015年间粮食单要素生产力为研究对象,通过构建"描述性统计-泰尔指数(Theil Index)分解-空间回归模型"这一实证分析框架,较为全面地比较了粮食单产水平(yA)和劳动生产率(yL)两指标之间的关联与差异。结果表明:1)国内研究大都选择yA,而国际学界则更多采用yL作为测度指标。研究范式的差异是造成指标选取差异的根源所在,不同测度指标的选取也会深刻影响粮食政策制定与实施的一般性倾向;2)两指标均呈现由东北向西南逐渐降低的空间分布特征,但彼此间并不存在均匀的线性相关关系。两指标经整体与局部空间层面的泰尔指数分解后均呈现较为明显的相异趋势;3)空间回归分析中,农地流转和中间投入品等变量对两指标的影响机制在回归系数的方向、大小和显著性等方面具有较高一致性,但以yL为因变量的模型拟合效果显著优于yA。精准化与差异化的施策方式为本文的政策启示所在。
[Abstract]:Whether we can effectively enhance the single factor productivity is the basis of ensuring the food security and enhancing the total factor productivity of our country. This paper studies the single factor productivity of grain between 2003 and 2015 in 30 provinces and regions of China. Elephant. Through the construction of "descriptive statistics-Theil index Theil Index) decomposition-spatial regression model", an empirical analysis framework. The correlation and difference between the two indexes of grain yield level (yA) and labor productivity (YL) are compared. The results show that most of the studies in China choose YA. However, the international academic circles more use yl as the measure index. The difference of research paradigm is the root cause of the difference in the selection of indicators. The selection of different measure indexes will also deeply affect the general tendency of grain policy formulation and implementation. 2) the spatial distribution of the two indexes decreased gradually from northeast to southwest. However, there is no uniform linear correlation between the two indexes. 3) in spatial regression analysis, there is a high consistency in the direction, size and significance of the regression coefficient between the variables such as farmland circulation and intermediate inputs. However, the fitting effect of the model with yl as dependent variable is better than that of yA. the policy inspiration of this paper lies in the ways of precision and differentiation.
【作者单位】：贵州大学管理学院/中国西部发展能力研究中心;浙江大学管理学院/中国农村发展研究院;
【基金】：国家自然科学基金项目(71673065) 贵州省2014年重大应用基础研究项目(黔科合JZ字[2014]200205) 贵州大学文科重点特色学科重大项目(GDZT201504)~~
【分类号】：F326.11
【正文快照】： 在我国“三农”领域,“粮食安全、食品安全与耕地安全”已成为当前经济社会发展中必须面对的重大民生问题,其中又以粮食安全最为根本,在构建“三农”安全网中扮演着承上启下的关键角色。农业生产力的持续性增长对长期经济增长的重要性已逐渐成为经济理论界与相关政策制定者的

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