自由贸易试验区设立对城市创新能力的影响OA北大核心CHSSCDCSSCI

This paper explores the impact of establishing free trade zones(FTZs)on urban innovation capabili-ties and its mechanisms in the context of the new development paradigm.It comprehensively reviews the current ef-fectiveness of FTZ construction,holding significant theoretical and practical importance for disseminating FTZ de-velopment experience and achieving the innovation-driven development strategy. Specifically,this paper treats the establishment of FTZs as a quasi-natural experiment and employs rigorous mathematical models to theoretically analyze the impact of FTZ on urban innovation.Utilizing panel data from 278 Chinese cities from 2001 to 2021 and employing the multiple-period difference-in-differences(DID)method,the paper investigates the effects of the FTZ establishment on urban innovation capabilities.Empirical test results indi-cate a significant enhancement of urban innovation capabilities due to the FTZ establishment,a conclusion suppor-ted by a series of robustness tests.The impact of FTZ on urban innovation capabilities exhibits typical heterogeneity due to differences in geographical conditions,factor endowments,and establishment batches.The mechanism test indicates that factor aggregation and market competition are crucial mechanism variables influencing the develop-ment of urban innovation capabilities in FTZs.Finally,from the perspective of promoting the efficient aggregation of production factors and improving the high-standard market system,the paper provides policy recommendations to better showcase the effectiveness of FTZ policies. The potential marginal contributions of this paper are as follows. First,through rigorous mathematical models,it explicates the mechanism through which the establishment of FTZs influences urban innovation capabilities,thereby refining the technical treatment of mathematical models in FTZ research. Second,in terms of indicator selection,this paper overcomes differences in previous l iterature by employing the urban innovation capability index to characterize innovation levels. Third,unlike existing studies that predominantly discuss the impact of FTZs on innovation from a single per-spective,this paper integrates FTZ development,production factor aggregation,competition effects,and innovation capabilities into a unified analytical framework. It concludes that factor aggregation and strengthened market competition are crucial channels through which FTZs improve urban innovation capabilities.