2025-05-29 00:07 | 0 阅读 "The Yangtze Delta Megaregion: How Shanghai's Sphere of Influence is Redefining Urban Economics" Section 1: The Gravity Well Effect- Shanghai's GDP (¥6.8 trillion) vs. neighboring prefectures- Industrial relocation patterns 2015-2025- Case study: Tesla's supply chain ecosystemSection 2: The 30-Minute Connectivity Revolution- World's densest i