Does CBEC Comprehensive Pilot Zone Promote the Export Technological Sophistication of Urban Manufacturing?
As a special location-oriented industrial policy with the Internet platform,the Cross-Border E-Commerce(CBEC)compre-hensive pilot zone has become a new engine to promote the transformation and upgrading of China's manufacturing exports.This study constructs a quasi-natural experiment using the policy shock of CBEC comprehensive pilot zone establishment and empirical-ly investigates the causal effect of CBEC comprehensive pilot zone on export technological sophistication of urban manufacturing during 2010-2019 using an staggered difference-in-differences model.It is found that the establishment of the CBEC comprehen-sive pilot zone can significantly promote the export technological sophistication of urban manufacturing,and this promotion effect has gradually increased over time.The mechanism test finds that the cross-border e-commerce comprehensive pilot zone jointly promotes the export technological sophistication of urban manufacturing through cost reduction effect,innovation promotion effect and industrial agglomeration effect.Compared with cities dominated by general trade,with higher administrative levels and farther from ports,the promotion effect of cross-border e-commerce comprehensive pilot zones on export technological sophistication of ur-ban manufacturing is mainly reflected in cities dominated by processing trade,with lower administrative levels and closer to ports.This study not only provides empirical evidence for the upgrading of urban manufacturing export under the"multi-wheel drive"mechanism of cross-border e-commerce comprehensive pilot zone,but also provides new development ideas for China's manufac-turing export to cultivate new international competitive advantages.