关键词: 服务外包, 产业链长度, 上游度

Abstract:  Based on the Antras et al. (2012) method, this paper uses Inputoutput tables of 30 provinces and autonomous regions of China in 1997,2002, 2007 ,2012 and 2017 to measure the industrial chain length of 17 sub industries at the provincial level, and analyzes the role of service outsourcing in extending the industrial chain length. The empirical results show that: firstly, on the whole, service outsourcing has a significant role in promoting the growth of China's industrial chain. Every 10% increase in service outsourcing can promote the growth of China's industrial chain by 0.62%. Secondly, from the perspective of service outsourcing, transportation and warehousing outsourcing has the greatest effect on the extension of industrial chain. Thirdly, the study of different regions finds that the service outsourcing has the greatest promotion effect on the industrial chain length in the central regions, followed by the western regions and the eastern regions. Fourthly, the study of different industries finds that the service outsourcing has an effect on the length of industrial chain in both the manufacturing industry and the service industry, but the promotion effect on the service industry is nearly 2.7 times of the promotion effect of the manufacturing industry.

Key words: service outsourcing, industrial chain length, upstreamness