Data and code-Research on Digital Infrastructure Construction and Corporate Innovation Efficiency: Evidence from Broadband China Strategy

Adopting the Broadband China Strategy as a quasi-natural experiment, we construct a multi-period Difference-in-Differences (DID) modelto examine the relationship between digital infrastructure construction and corporate innovation efficiencywith panel data from Chinese listed companies spanning from 2010 to 2022. Results reveal that the digital infrastructure development significantly enhances corporate innovation efficiency by alleviating financing constraints and optimizing the structure of human capital. Furthermore, the Broadband China Strategy exerts a pronounced impact on non-state-owned enterprises, non-high-tech enterprises, and enterprises located in the eastern region. Overall, our research presents valuable insights for enterprises striving to augment their innovation efficiency, while also providing robust evidence of the innovation-enhancing effects of digital infrastructure.