Cluster Analysis on the High Quality Development of Foreign Trade in Guangdong-Hong Kong-Macao Greater Bay Area

- Based on the foreign trade development data of 11 regions in the Guangdong-Hong Kong-Macao Greater Bay Area in 2018, to establish a system of indicators for high-quality development of foreign trade. Combining the elbow rule and contour coefficient method, the foreign trade quality classification of 11 regions is obtained, and the k-means clustering algorithm is used to classify the high-quality development level of foreign trade in 11 regions. The differences in the high-quality development of foreign trade in 11 regions of the Guangdong-Hong Kong-Macao Greater Bay Area are studied, and the reasons for the differences are analyzed and appropriate suggestions are given.