中美制造业出口国内增加值比较研究——基于扩展的KWW方法

A Comparative Study on Manufacturing Export Domestic Value-added between China and the United States Based on the Improved KWW Method

基于扩展的KWW出口国内增加值核算方法,对中美制造业出口数据进行量化分解。一方面,建立了出口增加值、增加值出口以及出口额之间的数量关系,得出更加准确的出口增加值和重复统计项;另一方面,探讨了出口国内增加值在全球产业层面的流动,实现了对出口增加值的动态分析。结果显示:(1)中国作为制造业出口大国,其出口国内增加值的增速较快,并且超越美国,但已有回落之势。在出口增加值率方面,中国制造业未能超越,且与美国有较大差距;(2)中美制造业出口增加值的全球流动趋同,中国越来越深入到全球价值链分工体系。进一步地,将KWW方法进行拓展,改进了出口国内增加值核算模型。在全球价值链分工背景下,对进一步研究中国的出口国内增加值有重要的参考价值。

Based on the improved KWW export domestic value-added accounting method,this paper quantizes and decomposes the export data of Chinese and American manufacturing industries.On the one hand,it is established that the quantity relation of export value-added,export value-added and export volume,at the same time,the accurate export value-added and repeat statistics is arrived.On the other hand,it explores the domestic export value-added flows on the level of global industry,and realizes the dynamic analysis on the export value-added.The results show that：（1） As a major manufacturing export country,China had a faster growth rate of domestic export value-added,and surpassed American,while it has been declining in recent years.In terms of export value-added rate,China has failed to surpass and has a big gap with American;（2） The global flow of export value-added by China and American is converging,and China is deepening into the global value chain division system.This paper improves the KWW method,the domestic added-value accounting model,which has important reference value for further study of China＇s domestic export value-added in the value chain.