Shanghai's Spheres of Influence: How China's Financial Capital is Reshaping the Yangtze River Delta The Making of a Mega-RegionGeographic Scope:- Core: Shanghai municipality (6,340 km²)- Immediate periphery: Suzhou, Wuxi, Nantong, Jiaxing (within 100km)- Extended zone: Hangzhou, Nanjing, Ningbo, Changzhou (within 300km)Economic IntegrationKey in