产品内国际分工、区际一体化与生产性服务业集聚——基于我国1995~2011年省级面板数据的研究

基于我国30个省市1995~2011年的数据，从全国和区域两个层面就产品内国际分工、区际一体化对中国生产性服务业集聚的影响进行的实证分析显示：相较于区际一体化，产品内国际分工对我国生产性服务业集聚的促进作用较小，而且这一促进作用目前只在东部地区有所显现。这说明现阶段我国整体仍处于全球价值链低端的情况下，生产性服务业集聚发展更大程度上依赖于国内区域市场的整合；产品内国际分工与区际一体化对生产性服务业集聚的影响，在总体上呈现出相互促进和加强的关系。这意味着随着国内区际一体化进程的不断推进和地区间分工合作关系的进一步增强，产品内国际分工对我国各地区生产性服务业集聚发展的促进作用将得到更充分发挥。

Intra-product Specialization, Interregional Integration and the Producer Services Agglomeration: A Study Based on Provincial Panel Data of China from 1995 to 2011

This paper estimates the effect of the international intra-product specialization and interregional integration on China''s producer services agglomeration from general and regional levels based on the data of 30 provinces in China from 1995 to 2011. It is found that the intra-product specialization has a modest promoting effect on producer services agglomeration in China compared with interregional integration, and it only performs in eastern China currently. This result indicates that agglomerate development of China''s producer services may depend more on the national market integration due to the fact that China is at the lower end of the global value chain. In addition, there exists positive interactive effects between the intra-product specialization and interregional integration on producer services agglomeration. It means that with the pace of regional cooperation and its integration the promoting effect of intra-product specialization would be brought into full play.