中国工业部门的能源CES生产函数估计

Estimation of China's Industrial Sectors' Energy CES Production Function

在构建1980—2010年中国工业部门投入—产出的数量和价格数据库基础上,估计了中国工业部门的能源CES生产函数,通过比较不同函数形式下的估计结果后发现:(1)(KE)L函数形式较符合中国工业部门的实际情况,且工业部门的资本—能源替代弹性的估计值为0.32,合成品—劳动的替代弹性的估计值为0.22;(2)(KE)L函数形式下,中国工业部门能源CES生产函数中的能源增强型技术进步率的估计值为2%,资本增强型技术进步率的估计值为-4%,劳动增强型技术进步率的估计值为6%。

The elasticity of substitution and the functional are cornerstones of the CGE model. First,this paper constructed China＇s industrial sectors＇ input and output data 1980--2010,including input prices and quantities, output prices and quantities. Then econometric method was used to estimate China＇s industrial sectors＇ energy CES functional form and factor elasticity of substitution. Some important results are found. First, （KE）L functional form was more feasible for China＇s industrial sectors, with elasticity of substitution between capital and energy 0.32 and between capital-energy aggregate and labor 0.22. Second, China＇s industrial sectors exhibited capital-augmenting, energy-augmenting and labor-augmenting technological changes in the sample period with the rates of-4% ,2% and 6% respectively.