陆地边疆开放对中国与毗邻国贸易效率的影响--关于边疆地区作为“双循环”贸易枢纽节点的辨析

Research on the Impact of Land Border Opening on Trade Efficien⁃cy Between China and Neighboring Countries--An Analysis of Bor⁃der Areas as“Dual Circulation”Hub Nodes

边疆开放畅通了我国与毗邻国家要素的跨境流动,成为贸易效率提升的新动力。文章基于区际贸易与区域经济一体化理论,创新构建了边疆地区开放指数,并使用随机前沿引力模型,检验了我国边疆地区的开放水平、我国和毗邻国家贸易效率的相关性。结果表明,我国与14个毗邻国家的贸易效率总体上依然处于较低的水平,而边疆开放对我国与毗邻国家的贸易效率具有显著的正向影响作用,且该作用在西北边疆地区较为显著。

The opening up of border areas has facilitated the cross-border flow of factors between China and neighboring countries,becoming a new driving force for improving trade efficiency.This study is based on the theo-ry of inter-regional trade and regional economic integration,innovatively constructing the Border Region Openness Index,and using a stochastic frontier gravity model to test the correlation between the level of openness in China’s border regions and the trade efficiency between China and neighboring countries.The results indicate that the over-all trade efficiency between China and the 14 neighboring countries is still at a relatively low level,and border open-ing has a significant positive impact on the trade efficiency between China and neighboring countries,with this ef-fect being more significant in the northwestern border region.