中文摘要：

全球价值链是当前学术研究的前沿问题。随着全球化分工的日益深入,各国纷纷参与全球化生产,国际贸易的对象不再是完整的产品而是细化为＂工序＂贸易。一国出口品生产大量使用其他国家或地区的进口品作为中间品投入,中间品关税减让所带来的影响也越来越大。中间品关税减让会影响我国企业全球价值链参与度和分工地位吗？本文在对我国价值链参与程度、价值链分工地位作准确度量的基础之上,实证分析中间品关税减让对我国企业价值链升级的影响,研究结果表明：中间品关税减让有利于我国企业参与全球价值链体系,并且显著提升了我国企业在价值链体系中的分工地位,且行业的资产专用性越高,中间品关税减让的提升作用越明显。

英文摘要：

The study of global value chain is one of preceding issue studied by current academic. Many countries participate in global production network and the trading is dealing more with production process not the whole product. Import of intermediate goods plays an important role in globalization of manufacturing. Will the tariff reduction of intermediate goods affect China firms＇ role in division of global value chain？ This paper systematically survey the influence of on China firms＇ export. In addition, this paper has an accurate measurement on China＇s export value added, participation in global value chain and role of value chain division. Then we get a further step research of this basis, the results indicate that tariff reduction of intermediate goods do have benefits for China export firms to take part in global value chain and raising the statue of China firm＇s value chain in the world. In addition, the reduction can have much more influence on raising the statue in value chain especially for the industry with high asset specificity.