关键词: 信息化建设, 供应链溢出, 企业劳动雇佣, 宽带中国

Abstract: Information technology(IT)construction, as a key measure to strengthen enterprises' supply chain networks, has a profound impact on corporate employment. Based on the data from A-share listed firms and their top five suppliers and customers from 2009 to 2020, this paper employs the Broadband China policy as a quasi-natural experiment to explore the impact of IT construction on corporate employment scale and structure from the perspective of supply chain spillover effects. The study finds that IT construction in cities where midstream firms are located not only significantly enhances their own operational performance but also leads to a 12.7% increase in the average employment scale of upstream and downstream firms, along with a higher proportion of high-skilled employees. Mechanism analysis reveals that the promotion of corporate employment in upstream and downstream firms is achieved through expanding their market scale and reducing their operation risks. This effect is more pronounced in midstream private firms and in upstream and downstream firms with high labor intensity, high financing constraints, and high supplier and customer concentration. This paper provides new insights into the policy effects of IT construction and its impact on corporate employment, offering valuable lessons for promoting steady growth and high-quality development.

Key words: Information Technology Construction, Supply Chain Spillover, Corporate Employment, Broadband China