The Research On Three Metropolitan Economic Differences From The Perspective Of International Trade

Since the reform and opening up, Chinese economy has made achievements that attracted worldwide attention, but the attendant problems, many of them, how to promote the development of China’s scientific and rational city, is an urgent task.Since February 2014, President Xi Jinping stressed the importance of the coordinated development of Beijing Tianjin Hebei, this will promote the coordinated development to the height of the national strategy of Beijing Tianjin Hebei metropolitan area. Beijing Tianjin Hebei China as a new economic growth point. Its development directly affects the level of the whole country economy. Only by adhering to the Beijing, Tianjin and coordinated development in an all-round way to build with Chinese characteristics of the new metropolitan area to be able to continue to promote regional economic innovation, to provide a good demonstration for the future of China’s regional development, to make research and development of Beijing and Tianjin, Hebei made scientific and rational development patterns to achieve the rational allocation of resources, complementary advantages so as to drive the ring Bohai Sea economy fast and high quality development, to explore the sustainable development of a scientific way. Although in recent years for the Beijing Tianjin Hebei metropolitan circle to build a following the Pearl River Delta, Yangtze River Delta metropolitan area after China’s economic growth "third pole" made a lot of effort and have achieved certain results, but in fact, compared pearl long metropolitan area, Beijing Tianjin Hebei metropolitan area economic development is still relatively backward. Therefore, to find three metropolitan economic gap for the Beijing Tianjin Hebei Economic Development and national economic development and has great practical significance.Firstly, through the literature related to a large number of domestic and foreign regional economic gap, based on existing research methods and ideas on finding new breakthrough and innovation, with the development of foreign trade gap affects the gap of economic development as the focus of the study lay a theoretical base for the thesis, followed by referring to the Beijing Tianjin Hebei region, the Pearl River Delta the Yangtze River Delta, the related data, and based on the summary and Analysis on the preliminary description and analysis of the development status and the status quo of economic development Chinese Eastern three metropolitan foreign trade and the correlation between the two, found that there is a big gap between Beijing Tianjin and Hebei and the Pearl River Delta, Yangtze River Delta international trade development and economic development, based on the analysis of theory and on the current situation, the difference of the three metropolitan areas of the development of foreign trade on regional economic disparities are real Certificate of inspection, using autoregressive model based on vector(VAR) dynamic econometric analysis method to study the effect of different Chinese foreign trade development area on the regional economic gap, further found through the analysis of the Granger causality test, impulse response: expand the development difference of trade import and export trade development difference will produce significant influence on the expansion of the three metropolitan economic gap, positive effect and the development of export trade differences on regional economic gap is greater than the differences in the development of import trade positive effects on regional economic disparities; at the same time, variance decomposition results validate the above conclusions from the data, finally the article analyzed the Beijing Tianjin Hebei and the Pearl River Delta, Yangtze River Delta trade gap mechanism and lead because of the economic gap, and puts forward the corresponding countermeasures and suggestions.