数字经济对长三角制造业出口产品质量升级的影响研究

文章以长三角41个城市为考察对象，运用微观贸易数据，并结合其他城市层面数据构成面板数据，探究数字经济对制造业出口产品质量升级的影响效应和作用机制。研究发现：第一，数字经济对制造业出口产品质量提升有显著促进作用，内生性与稳健性检验均支持这一结论；第二，数字经济通过提高产品生产效率和研发创新水平来促进制造业出口产品质量提升；第三，金融发展水平在数字经济促进制造业出口产品质量提升的过程中起到抑制作用。由此，文章建议要充分发挥长三角地区在数字经济和制造业领域的领先优势；制造业企业应主动进行数字化转型，充分利用数字技术改进生产方式；完善金融服务实体经济的整体功能。

Research on the Impact of Digital Economy on the Quality Upgrading of Export Products in Yangtze River Delta Manufacturing Industry

Taking 41 cities in the Yangtze River Delta as objects of investigation, this paper uses micro-trade data and combines other city-level data to form panel data to explore the effect and mechanism of digital economy on the quality upgrading of manufacturing export products.The findings are as follows: first, digital economy has a significant promoting effect on the quality improvement of manufacturing export products, which is supported by the endogeneity and robustness tests; second, the digital economy promotes the quality of manufacturing exports by improving production efficiency and R&D innovation; third, the level of financial development plays an inhibitory role in the process of digital economy promoting the quality improvement of manufacturing exports.Therefore, this paper suggests that we should give full play to the leading advantages of the Yangtze River Delta in the field of digital economy and manufacturing; manufacturing enterprises should take the initiative to carry out digital transformation and make full use of digital technology to improve the mode of production; improve the overall function of the financial sector to serve the real economy.