关键词: 市场一体化, 出口技术复杂度, 技术创新, 机制

Abstract: Starting from the unique advantages of China’s economy，this paper systematically summarizes the theoretical mechanism of domestic market integration affecting export technical sophistication, constructs the intermediary effect model and makes an empirical test on theoretical expectations by using the panel data of 30 provinces (exclude Tibet) in China from 2003 to 2016. The results show that the domestic market integration significantly promotes the export technical sophistication，and with the passage of time，this promotion will gradually increase. The influences of market integration on export technical sophistication are different by industry and region. The market integration plays the most prominent role in enhancing the export technical sophistication of the technology-intensive industries. The coefficients of market integration in inland areas are significantly positive, while the positive effects of market integration in coastal areas are not significant. Market integration not only directly promotes the export technical sophistication, but also promotes it through technological innovation effect, demand-driven effect and institutional improvement effect, among which the intermediary effect of technological innovation is the most effective. This paper proves that domestic market integration can be used as an internal motive for China to enhance the export technical sophistication. It is of great significance for China to promote the construction of a unified domestic market and realize the goal of a trade powerful country and the economic transformation and development.

Key words: Market Integration, Export Technical Sophistication, Technological Innovation;Mechanism