有偏技术进步、替代弹性与粮食生产要素组合变动

发布时间：2018-01-23 21:48

本文关键词： 粮食生产有偏技术进步替代弹性要素组合　出处：《软科学》2017年04期 　论文类型：期刊论文

【摘要】：基于有偏技术进步、要素替代的研究框架理论,探究了粮食生产要素组合及技术变动趋势。构建超越对数生产函数模型,利用全国30个省份2001~2013年面板数据进行实证研究,计算了各要素价值份额和替代弹性。实证结果显示,粮食生产中化肥、农药的边际贡献递减,而农用柴油、农业机械设备的边际贡献递增;劳动用工量的边际贡献递增,且与其他物质要素的替代关系明显。为此,通过提高要素利用效率和要素替代弹性等推动粮食生产技术进步,实现生产要素组合的动态优化。
[Abstract]:Based on the research framework theory of biased technological progress and factor substitution, this paper probes into the combination of grain production factors and the trend of technological change, and constructs a model of transcendental logarithmic production function. Based on the panel data of 30 provinces from 2001 to 2013, the paper calculates the value share of each element and the elasticity of substitution. The empirical results show that chemical fertilizer is used in grain production. The marginal contribution of pesticides is decreasing, while the marginal contribution of agricultural diesel and agricultural machinery is increasing. The marginal contribution of labor consumption is increasing, and the substitution relationship with other material elements is obvious. Therefore, the technical progress of grain production is promoted by improving the factor utilization efficiency and element substitution elasticity. Realize dynamic optimization of production factor combination.
【作者单位】：河南师范大学公共政策与社会管理创新研究中心;
【基金】：国家科技支撑计划项目(2013BAD07B14-6)
【分类号】：F224;F326.11
【正文快照】： 党的十八大报告指出,要增强中国农业综合生产能力,通过农业技术创新实现粮食生产的数量与质量效益并重,走资源节约、环境友好和产出高效的新型粮食安全道路。中国粮食保持了十二年连续丰产,用全球7%的耕地生产出了全球21%的粮食,但也消耗了全球35%的化肥和超过30%的农药、除草

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