题目: Catching the Wind—Transportation and Knowledge Spillover: Evidence from China’s High-Speed Railway Network

主讲人：曹思未，北京师范大学

时间：2020年11月9日，13:30-15:00

地点：暨南大学石牌校区中惠楼106B

个人简介：曹思未，北京师范大学经济与工商管理学院讲师，加州大学伯克利分校博士，主要研究方向：创新经济学，科技政策与发展。曾在《经济研究》、《世界经济》等国内外期刊发表论文数篇。

Abstract:

This paper exploits exogenous variation in the construction of China’s High-Speed Railway (HSR) system to estimate the effect of reduction in transportation costs on the extent of geographical localization of knowledge spillovers in China. We show that connection to the HSR network leads to a 1.7% increase in spillover from a patent to a city in a year. The marginal benefit increases with distance, with cities located within 200km receiving no additional spillover and cities located farther than 1400km experiencing the largest increase (5.1%). The extent of increase in generating spillover due to HSR is larger for corporate patents than for university patents, larger for non-star patents than for star patents, larger for less innovative entities than for more innovative entities and manifested more though increase in inter-technology rather than intra-technology citations. In addition, the extent of increase in capturing spillover due to HSR is larger for peripheral cities than for metropolitan centers and within peripheral cities, larger for more innovative entities than for less innovative entities. Both spillovers from university to corporates and from corporates to universities are significantly improved due to HSR and their magnitudes are at a comparable level to that among corporates alone. Peripheral cities experience significant improvement in innovation performance as measured by citation-weighted patents, possibly through the channel of enhanced spillover due to HSR. Thus, the construction of High-Speed Railway significantly alleviates regional disparity in knowledge accumulation and contributes to innovation performance.