Shanghai's 50km Revolution: How the Megacity is Redefining Regional Development in 2025

Section 1: The New Metropolitan BlueprintRegional Composition:• Core: Shanghai (6,340 km², ¥6.8t GDP)• First-tier satellites: Kunshan, Jiading, Songjiang (30-50km)• Second-tier partners: Suzhou, Jiaxing, Zhoushan (50-80km)• Emerging colla