校准方法与计量经济方法的比较

Comparison between Calibration Procedure and Econometric Estimation

介绍了可计算的一般均衡 (CGE)模型中确定参数的两种主要方法 :校准方法与计量经济方法 ,并对两种方法进行了比较 ,分别论述它们的优缺点。得到的结论是在CGE模型中进行参数估计时采用“校准”方法和计量经济学方法相结合 :对于刻画行为人的行为并对结果有重要影响的参数 (如各种弹性 )采用计量经济学方法来估计 ,其他的参数则利用所构造的社会核算矩阵 (SAM )通过校准方法而得到。

The two methods of estimating parameter in computable general equilibrium(CGE) model are introduced and compared:the calibration procedure and econometric estimation. The conclusions are:the estimation of parameter in CGE model must use the calibration procedure coupled with the econometric estimation method;the elasticity of output with respect to labor input,the marginal expenditure share for households and price elasticity of export demand are estimated by econometric estimation method;and other parameters of the CGE model can be get by calibration procedure.