The Shanghai Metropolitan Circle: Blueprint for 21st Century Urban Integration

Economic Powerhouse (2025 Data)• Combined GDP: ¥27.4 trillion (US$3.78 trillion)• Population: 82 million across 9 cities• Export volume: $1.2 trillion (18% national total)• R&D investment: 4.3% of regional GDPTransportation Network- 3,842k