中国投入产出表中投入系数变化的分析

Study on Input Coefficient Change in Chinese Input-Output Table

比较分析中国从1992-2000年投入产出表的时序数据,概括了部门间中间投入系数的变化趋势。分析表明:随着经济水平的提高,中国经济系统和大多数部门的中间投入率均有所提高,但部门间的投入系数变化却差异较大。总体而言,大多数部门偏向于对基础能源部门的使用,而减少了对消费品制造业、采掘业和服务业的使用份额;且绝大多数部门均增加了对自身部门的使用比重。投入系数的变化反映了这些年来中国经济部门技术水平和经济结构方面的系统性变化特征。

The general trends of the direct input coefficient change are summarized by the comparison of Chinese series input - output tables from 1992 to 2000. The studies show that both the whole input ration in the total output and intermediate consumption in the total consumption are rising with the elevation of Chinese economic level. Generally speaking, most of the industries tend to use more utilities - intensive products while reduce the inputs shares of consumption manufacturing, mining product and service. Besides, self - employment ratios within most of the industries increase. The coefficient changes indicate the systematic characters of Chinese industries＇technology improvement and the economic structural system transmission.