世界经济研究

自由贸易试验区与自主创新示范区的联动发展(简称“双自联动”)，构建起高效协同的开放创新体系，为企业融入全球创新网络、加速数字创新带来了重要契机。文章在新OLI框架下构建了“双自联动”政策促使企业融入全球创新网络进而提升数字创新的理论体系，并将“双自联动”政策视为准自然实验进行了实证检验。研究发现，“双自联动”政策显著促进了企业的数字创新，这一结论经过一系列稳健性检验后仍然成立。机制分析表明，“双自联动”政策通过“开放资源—联结—整合”的多维优势驱动，进一步释放企业融入全球创新网络对其数字创新的提升效应。异质性结果表明，“双自联动”政策对企业数字创新的赋能效应主要体现在小规模企业和政府补助企业中，在高新技术企业和知识产权治理水平较高的地区表现更为明显。文章不仅为政府统筹推进“双自联动”政策、积极探索自贸区制度集成创新路径提供了重要启示，更为加快实现高水平科技自立自强提供了有益参考。

The coordinated development of Free Trade Zones(FTZs) and Self-dependent Innovation Demonstration Zones(SIDZs),termed the " Dual-Zone Linkage" policy,has established an efficient and collaborative open innovation system,creating significant opportunities for firms to integrate into global innovation networks and accelerate digital innovation. Under the new OLI paradigm,this study constructs a theoretical framework in which the " Dual-Zone Linkage" policy facilitates firms' participation in global innovation networks,thereby enhancing their digital innovation capabilities. The policy is treated as a quasi-natural experiment for empirical validation. The findings reveal that the " Dual-Zone Linkage" policy significantly boosts corporate digital innovation,the conclusion stays robust in a series of sensitivity tests. Mechanism analysis demonstrates that the policy amplifies this effect through a multidimensional advantage-driven process of " open resources-linkage-integration",further unleashing the positive impact of global innovation networks on firms' digital innovation. Heterogeneity analysis indicates that the policy' s empowering effect is more pronounced in small-sized firms,government-subsidized enterprises,high-tech firms,and regions with stronger intellectual property governance. This study not only provides critical insights for governments to systematically implement the " Dual-Zone Linkage" policy and explore institutional innovation pathways in FTZs but also offers valuable references for achieving high-level technological self-reliance and self-strengthening.