Research On The Impact Of Boundary Effect On Regional Economic Integration

With the wave of economic globalization sweeping,regional economic integration has become the general trend.At the same time,because China is in a three-phase superposition environment,it is particularly critical to form a unified national market and build a pattern of domestic and international double circulation.Regional market integration is an important means and tool to promote the construction of a unified national market,and an important way to accelerate market-oriented reform in the transition economy.At present,in the practice of regional market integration,there are many obstacles to the construction of a unified national market,such as local protection and market segmentation,insufficient urban-rural dual system reform,virtual regional cooperation mechanism,and insufficient internal opening.The experience of the European Community,the United States and Russia shows that the key to promoting the construction of a unified national market through regional market integration is to promote the full and free flow of inter-regional commodity factor resources and build a transportation infrastructure that extends in all directions.The regional markets such as Beijing-Tianjin-Hebei,Yangtze River Delta and Guangdong,Hong Kong and Macao are homogeneous.First,the integrated market is built at the regional level,and then extended to the national level,which is more operable and feasible.As one of the most economically developed regions in China,how to play an exemplary role and provide a path for the construction of a unified national market is worth studying and discussing.Firstly,this paper makes an overall analysis of the spatial and temporal evolution of the level of regional integration in the Yangtze River Delta.It analyzes the current situation of regional integration in the Yangtze River Delta from the perspectives of market integration,transportation integration,industrial integration and innovation integration.It also analyzes the level of market integration from the commodity market,capital and labor market.It is concluded that the level of factor market integration lags behind that of commodity market integration,commodity market tends to integrate while the level of labor market integration is still in great development and change.Based on the city-level data,this paper uses the relative price method to analyze the commodity market segmentation and the level of market integration in the Yangtze River Delta.The existence of geographical administrative boundaries reduces the cross-border trade volume between the two places,hinders the flow of capital,labor and other factors,makes the economic development level between the two places have a gap,resulting in increased market segmentation,which is not conducive to the coordinated development of regional integration.Therefore,it is necessary to study the provincial boundary effect in the Yangtze River Delta region.This paper uses boundary dummy variables and other control variables that affect the integration level to conduct a fixed-year effect regression analysis on the integration level of the Yangtze River Delta market.At the same time,for different regions,the degree of effect is different,and the heterogeneity analysis is carried out.Using sub-sample regression,the following conclusions are drawn : the level of market integration between Jiangsu and Shanghai is less affected by the boundary,and the positive effect is greater than the negative effect,while the boundary effect between Zhejiang,Anhui and Shanghai is still based on the shielding effect,and the regional integration with Shanghai should be strengthened.At the same time,multiple sub-centers should be established to break through the institutional barriers that objectively exist between regions,provinces,cities and urban and rural areas that hinder the free flow of commodity factor resources.Finally,this paper gives specific feasible suggestions for the development of regional economic integration in the Yangtze River Delta in four specific aspects:mechanism design,industrial layout,industrial integration,finance and entities.The top-level design of the region should be strengthened and the regional cooperation mechanism should be improved;Optimize the spatial layout of cities and industries,clarify the development positioning of various regions,and avoid vicious competition between cities;Promote the deep integration of innovation and industrial chain,build a collaborative innovation community in the Yangtze River Delta,and solidly build an industrial innovation cooperation platform in the Yangtze River Delta region;At the same time,it will improve the real economic capacity of financial services,promote the deep integration of science and technology and finance,and solve the problem of information asymmetry through innovative technologies.The marginal contribution of this paper lies in sorting out the causes of boundary effects and the impact on regional economic integration,enriching and improving the research on boundary effects in multiple research perspectives,and conducting heterogeneous analysis of boundary effects in different regions and time periods from the perspective of urban agglomerations.It provides practical suggestions for the high-quality coordinated development of the Yangtze River Delta region,the formation of international and domestic dual circulation,and the construction of a large domestic market,and realizes the use of theory to guide practice.