关键词: 高铁建设；企业数字化转型；数字人才集聚；数字创新；双重差分模型

Abstract: Under the strategic background of “Digital China” and “Transportation Power”, it is of great significance to examine the impact of transportation network construction on the development of digital economy. Based on the panel data of A-share listed companies in Shanghai and Shenzhen from 2007 to 2020, this paper takes the opening of high-speed rail as a quasi-natural experiment and constructs a double difference model to examine the impact of high-speed rail on the digital transformation of enterprises and its mechanism. It is found that the opening of high-speed rail and the increase in the frequency of stops significantly promote the digital transformation of enterprises, and the conclusion remains robust through a series of robustness tests. It is further found that the construction of high-speed rail promotes the digital transformation of enterprises by accelerating the concentration of digital talents and improving digital innovation capabilities, and this facilitating effect is particularly prominent in state-owned enterprises, high-tech enterprises, technology-intensive industries, and regions with relatively low levels of new infrastructure development.

Key words: high-speed rail construction; enterprise digital transformation; aggregation of digital talents; digital innovation; double difference model