A STUDY ON THE EVOLUTION OF THE SPATIAL PATH OF GLOBAL TECHNOLOGY PRODUCTS BASED ON SPATIAL DENSITY ANALYSIS

With the rapid development of social economy, the level of science and technology has been significantly improved, and the emergence of big data technology and other technologies have been widely used in various fields, for which China's foreign trade volume has been rising. However, how to analyze the change of China's foreign trade by the proportion of high-tech products in foreign trade needs to be further studied. In this paper, through the method of establishing mathematical models, we understand the evolution characteristics of global high-tech industry through the evolution of global high-tech product spatial structure in each period, compare the product space of different regions with the global product spatial structure, analyze the position of each country and region in the global market, and explore the direction and path of high-tech product development and upgrading. Firstly, this paper studies several countries with the highest density of high-tech export products in the world from 2000 to 2016, and obtains the spatial evolution trend of high-tech product density. Then, the regional differences of high-tech product density are analyzed, and it is found that the changing trend of import and export product density in each continent is exactly internally consistent with the change of the number of imported and exported high-tech products with comparative advantages. Finally, the time-series evolution of high-tech product density in China is presented in detail. Finally, it is found that the density of imported and exported products is an important factor contributing to the spatial evolution of products, while the impact of the density of exported products is more significant.