【摘要】 该文运用 Cobb- Dauglas生产函数和项目有无比较法 ,对陕西省 1980年以来农业机械化对农业生产的贡献率进行了定量研究 ,导出农业机械化对农业产出的贡献率计算公式及灰色序列预测模型 ,并对两种方法的计算结果进行了分析比较。更多还原

【Abstract】 Based on the two methods of Cobb Dauglas production function and a comparison between mechanization and no mechanization in plant products industry, the estimating formulae of mechanization profit portion in plant products industry with gray series forecast model were derived. Then the mechanization profit portion in plant products industry in Shaanxi Province was estimated quantitatively by above two methods from 1980 to 2000. The mechanization profit portion from the Cobb Dauglas function is 20.79%, and the value obtained from the comparison method with mechanization and no mechanization is 21.10%. Finally, the evaluating results were analyzed and compared.更多还原