关键词: 数据跨境流动, 跨界创新, 数字创新, 核心技术创新, 数据治理

Abstract: In the context of the globalization of the digital economy, the efficient, convenient, and secure cross-border flow of data is a key support for unlocking the economic value of data and enabling enterprises to engage in cross-sector digital innovation. This study identifies digital patent information of the listed companies in traditional industries based on the IncoPat database and explores the impact of cross-border data flow on firms' cross-industry digital innovation. The findings are as follows. First, cross-border data flow can drive enterprises to pursue cross-industry digital innovation, mainly through reducing data costs, enhancing innovation ecosystem effects, and expanding market reaches. Second, the promotion effect of cross-border data flow is more significant in regions with higher levels of institutional openness, stronger intellectual property protection, better local cross-border data governance, and in firms that are non-state-owned, highly internationalized, and have strong cyber security capabilities. Third, cross-border data flow has positive spillover effects on the cross-industry digital innovation of the neighboring firms, or firms with shorter economic distances, and firms with similar technologies. In the short term, cross-border data flow can drive traditional firms to innovate in core digital patents and improve new quality productivity. However, with external tariff shocks and increasing risks in cross-border data flow, the promoting effect of data flow on firms' cross-industry digital innovation gradually weakens. This study provides policy references and practical pathways for building a cross-border data flow governance system and promoting the digital transformation of traditional enterprises.

Key words: Cross-border Data Flow, Cross-sector Innovation, Digital Innovation, Core Technology Innovation, Data Governance