贸易开放对绿色全要素生产率的影响——基于长三角地区40个地级市面板数据的实证分析

The Impact of Trade Openness on Green Total Factor Productivity:Empirical analysis based on panel data of 40 prefecture-level cities in the Yangtze River Delta Region

基于2005—2020年长三角地区40个地级市的面板数据,借助Malmquist指数对长三角地区的绿色全要素生产率(GTFP)进行测算,并分析对外贸易对其所产生的影响。结果显示,长三角地区绿色经济效率在不断提升,主要由绿色技术进步所推动。实证结果表明,贸易开放对长三角地区绿色全要素生产率起到了显著的正向影响,并且产业结构是贸易开放提升绿色全要素生产率的作用机制。为此,在提高对外开放水平的同时,应不断推动产业结构升级转型。

Based on the 40 prefecture-level cities in the Yangtze River Delta region from 2005 to 2020,which was measured by Malmquist index,and the impact was analyzed of foreign trade on green total factor productivity(GTFP).The results show that the efficiency of green eco-nomy in the Yangtze River Delta region is constantly improving,which is mainly driven by the progress of green technology.The empirical results show that trade opening has a significant positive impact on GTFP,and industrial structure is the mechanism of trade opening to improve GTFP.To this end,while improving the level of opening,should continuously promoting the upgrading and transformation of industrial structure.