变弹性C-D生产函数测算农业机械化的贡献率方法

Method research to appraise the contributive ratio of agricultural mechanization by change delastic C-D function of production

目前在用C-D生产函数测算农业机械化贡献率时,均采用各种投入要素的弹性系数为常数的情况下进行,文章在其研究的基础上,给出在各种投入要素的弹性系数随时间变化的情况下,测算农业机械化贡献率的方法,并给出相应的测算模型。

At present, it was used elastic coefficients of all kinds of input factors as constants to appraise the contributive ratio of agricultural mechanization by C-D productive function. On the foundation of researches, the paper gives methods to appraise the contributive ratio of agricultural mechanization under states that elastic coefficients of all kinds of input factors are changed with time, and relevant appraising model was constructed.