Group 1 - The article highlights the economic performance of various cities and counties in China, emphasizing the emergence of strong regional economies led by major cities and counties [1][3][12] - The top 100 cities in terms of GDP are dominated by eastern provinces, with Jiangsu, Shandong, and Guangdong leading in the number of cities included [3][6][7] - The threshold for entering the top 100 cities has risen to 360 billion, with the top 50 cities exceeding 600 billion, indicating a significant increase in economic competition [3][19] Group 2 - The top 100 districts are led by Guangdong, with a strong presence from Jiangsu, Zhejiang, and Sichuan, showcasing the economic strength of urban areas [8][12][15] - Shenzhen dominates the top district rankings, with multiple districts from Guangdong making the list, reflecting the region's robust urban economy [15][12] - The article notes that the economic landscape of districts would change significantly if the four direct-controlled municipalities were included in the analysis [12][15] Group 3 - The top 100 counties are primarily located in eastern China, with a focus on manufacturing, resources, and population size, indicating a concentration of economic power [16][21] - Jiangsu, Zhejiang, and Shandong lead in the number of counties in the top 100, with Jiangsu alone holding six of the top ten positions [16][21] - The article mentions that there are currently 62 counties with a GDP exceeding 100 billion, predominantly in eastern provinces, highlighting the economic capabilities of these regions [18][21]