中间品贸易的增加导致单国投入产出模型难以体现国家间的产业关系,所以学者们提出了国际投入产出模型.然而, 目前尚没有研究对最终品在单国模型与国际模型中的测算差异进行分析.文章基于投入产出方法对二者的测算差异进行建模,给出了测算差异的公式并进行分析.最后,利用2007年的国际表分析了两个模型在测算就业和碳排放量的差异,并得出结论:单国模型低估了最终品出口的拉动效应.

An increasing number of intermediate goods in the international trade makes it difficult for the input-output model of a single country to describe the relations among industries in countries, so the international input-output model has been founded by scholars. However, there are no researches focusing on bias in the estimated results of the two models. This paper constructs a model on the bias based on the input-output model. Finally, it calculates biases about employment and carbon dioxide between the two models by using the international input-output table in 2007 year and draws a conclusion that the single country model would underestimate the effect of final goods' export.