【摘要】 本文将空间外部性与新新贸易理论相结合推断出空间集聚对企业出口参与的动态影响,并运用Heckman两阶段模型检验了中国企业出口二元边际与空间集聚之间的关系。研究表明,拥挤效应导致中国企业出口二元边际与空间聚集存在显著倒U型关系。但总体来看,中国的空间集聚目前尚未达到最优水平。此外,在区分区位、行业及所有制之后发现,空间集聚对中国东部地区、资本和技术密集型以及外资企业出口行为的影响均表现出相似的倒U型特征。更多还原

【Abstract】 This paper is the first one that analyzes the effect from spatial agglomeration and market congestion on firm exports via combining spatial externality and new-new trade theory. By using the Heckman two-step model and the firm export data from 286 cities in China,this paper empirically studies the relationship between firm export dual margins and spatial agglomeration. In particular,the results indicate that market congestion leads to the significant inverted U-shaped relationship. However,in general,the current spatial agglomeration in urban China has not reached its optimal level,and the export dual margins of most firms are still expanding with the enhancement of spatial agglomeration. In addition,a closer look into the region,industry and ownership of the sample firms shows that a similar inverted U-shaped relationship exists in the eastern region,capital and technology-intensive industries,and foreign firms.更多还原