城市毗邻效应与出口比较优势

Neighbor-Cities Effects and Export Comparative Advantage

培育出口新优势与拓展区域发展空间是"十三五"规划中培育经济发展新动力的重要举措,城市群建设为出口新优势的培育提供了可能。本文采用2000-2006年中国海关与城市统计年鉴数据考察了城市空间邻近对城市出口比较优势的动态影响。研究表明,城市间交互作用对毗邻城市新产品与现有产品出口优势的培育具有显著促进作用,在以长珠江三角洲城市群为主的东南地区最为显著;且更大程度促进了毗邻城市非优势出口产品与中低技能技术密集型产品的出口优势培育;空间毗邻是城市间发挥交互作用的必要条件。政府应加快城市群建设步伐,促进邻近城市间知识外溢等交互作用的便利化,推动中国出口新优势培育。

Fostering new export advantages and expanding regional development space are important initiatives for cultivating economic development power in the 13th Five Year Plan. The construction of urban agglomeration provides the possibility for cultivation of new export advantages. We use a matching data of Chinese export data and city - level data over the period 2000 - 2006 to study the dynamic effect of intercity spatial proximity on the cities＇ export comparative advantages. The results reveal that intercity interactions have significant effects on both the export of new products and incumbent products of adjacent cities, and the effects are most significant in southeast of China which mainly includes the Yangtze River Delta and the Pearl River Delta; The effects are al- so mainly reflected on adjacent cities＇ non - advantage export products, mid - and low - skilled technology - in- tensive products. Adjacent cities are necessary conditions for the effects. The government should accelerate the construction of urban agglomeration to facilitate the intercity interactions to promote the export comparative advantage cultivation.