Study On The Spatial Effect Of Trade Growth Pole In China Customs Special Regulatory Zone

China’s Customs Special Supervision Zone is the frontier of innovation and reform in China’s open economy and foreign trade system.In the new round of opening-up,it plays a role of polarization agglomeration effect and space spillover effect in the institutional change process of trade growth pole.It is the key to achieving a breakthrough in China’s foreign trade and open economy,promoting economic transformation and upgrading and sustainable development.Due to the international environment change and the new normal of domestic environment,China’s Customs Special Supervision Zone complemented each other in exploring the offshore function of the growth pole of trade and the practice of the onshore free trade pilot zone,and dismantled the shielding effect of administrative boundary through the institutional change of regional port integration,promoting the formation of china’s overall opening space pattern.The paper tries to clarify the basic concepts of China’s Customs Special Supervision Zone and confusing concepts such as Free Trade Zone,Free Trade Zone and Free Trade Pilot Zone,by reviewing the relevant literature at home and abroad,the paper makes the paper makes Krugman’s Trinity theory of"region-city-international trade",North’s theory of institutional change,boundary effect theory and Port-hinterland relationship theory as the theoretical basis with the spatial effect of trade growth pole in China’s Customs Special Supervision Zone as the basic theory of the paper.Based on the theoretical analysis of China’s Customs Special Supervision Zone:The Trade Growth Pole of China’s Customs Special Supervision Zone has the function of agglomeration and spillover to China’s regional economic growth.It also shows innovation and demonstration effect,scale effect,optimization effect of spatial structure of open economy,agglomeration effect and so on.This paper further qualitatively analyses the optimization of spatial distribution and the role of agglomeration and diffusion of special customs regulatory zones in China in order to prove the importance of cultivating and developing special customs regulatory zones in an open market economy and provide some factual explanations.On the basis of theoretical analysis and factual explanation,this paper empirically analyses the spatial effect of trade growth pole in China Customs Special Regulatory Zone by constructing a spatial econometric model,including spatial agglomeration effect,spillover effect and performance evaluation.Finally,the paper summarizes the conclusions of qualitative analysis and quantitative analysis,and puts forward targeted policy recommendations.The core points of this paper are as follows:Firstly,the spatial layout optimization of China’s Customs Special Supervision Zone has the characteristics of synchronization and progressiveness of the times;the agglomeration and diffusion of China’s Customs Special Supervision Zone mainly embodies in promoting industrial undertaking and upgrading,expanding opening-up and increasing poles of trade;the optimization of spatial layout of China’s Customs Special Supervision Zone is accompanied by the Evolution and modern integration of functional system.Secondly,the growth pole of trade in China’s Customs Special Supervision Zone promotes the agglomeration level of the secondary and tertiary industries,showing"inverted U" and "inverted L" respectively in spatial time series,it also shows a non-linear relationship that the unbalanced spatial pattern ranges from "face" to"point" in spatial scale.Thirdly,the growth pole of trade in China’s Customs Special Supervision Zone strengthens the economic linkage between regional cities through the function of growth pole and point axis development,and promotes the development of "point"-"line"-"area" in China’s Customs Special Supervision Zone,its cities and surrounding areas,which has a significant positive spatial spillover effect;the spatial spillover effect of the growth pole of trade in China’s Customs Special Supervision Zone has a non-positive effect.Symmetry,the spatial spillover effect of non-coastal areas and port cities is weaker than that of coastal areas and port cities.The spatial spillover effect of non-provincial administrative border areas is similar to that of provincial administrative border areas.Fourthly,the cultivation of trade growth poles in China’s Customs Special Supervision Zone has improved the level of economic development performance,and the promotion effect on port-based areas is more obvious than that of hinterland-based areas;in the coupling relationship with the expansion of opening-up,the growth rate of the coupling development index is more obvious after 2013,and the spatial unbalanced coordination effect of"east-high-west-low" and "south-high-north-low" is presented.