2025-05-25 14:06 | 0 阅读 The Delta Dominance: How Shanghai's 50-Mile Radius Is Outcompeting Global City Regions [The Productivity Paradox]Regional Economic Analysis:• 18% of China's total exports from 2% land area• 47 Fortune 500 R&D centers in 50-mile radius• 12% annual growth in high-value manufacturing• 92-minute average commute tolerance threshol