进口产品规模、产业优化与城市经济韧性

Scale of Imported Products, Industrial Optimization and Urban Economic Resilience

当前提高城市经济韧性需要重点关注进口产品带来的深层影响。通过匹配285个城市数据与海关数据,构建计量模型实证检验进口产品规模对城市经济韧性的影响效应、传导机制及空间溢出。研究结果表明:扩大进口产品规模对城市经济韧性有显著提升效应;异质性分析表明,进口产品规模对城市经济韧性的影响在非资源型、大规模城市维度下更为显著;机制检验表明,进口产品规模能通过促进产业结构升级、提升产业集聚和增强技术创新能力提高城市经济系统恢复和再发展能力,进而增强城市经济韧性;进一步地,通过构建空间杜宾模型发现进口产品规模对城市经济韧性有正向空间溢出效应。为此,提出建议,建设韧性城市需重视进口产品对产业结构、产业集聚和技术创新的推动作用,以开放增强城市经济韧性。

At present,improving urban economic resilience requires more focus on the deep impact of the scale of imported products.By matching data of 285 cities with data from customs,the article constructs an econometric model to test the impact effect,transmission mechanism and spatial spillover of the scale of imported products on urban economic resilience.The results indicate that expanding the scale of imported products has a significant improvement effect on urban economic resilience.Heterogeneity analysis shows that the impact of the scale of imported products on urban economic resilience is more significant under the dimension of non-resource oriented and large-scale cities.Mechanism test shows that the scale of imported products can improve the recover and redevelop abilities of the economic system of cities by promoting industrial structure upgrading,improving industrial agglomeration and enhancing technological innovation capabilities,so as to strengthen economic resilience of cities.Furthermore,it is found that the scale of imported products has a positive spatial spillover effect on urban economic resilience by constructing a spatial Durbin model.Therefore,this article suggests that great attention should be paid to the promoting effect of imported products on industrial structure,industrial agglomeration and technological innovation in order to build resilient cities and strengthen urban economic resilience.