Economic integration and upward mobility in Brazil2026-08-10·419 字·1 分钟Polihot 政治经济学 Brazil Urbanization Economic Integration Social Mobility AgglomerationPNAS 123/33 pp. e2604542123-e2604542123 2026-08-10 Original Economic integration and upward mobility in Brazil Radu Barza, Edward Glaeser, César A. Hidalgo, Martina Viarengo