WANGLING, Ma. Structural Vulnerabilities by Design: An Institutional Analysis of Zhengzhou’s Multi-Level Warning and Risk Communication System Prior to the 2021 Urban Flood of China. Journal of Environmental Economics and Sustainability, [S. l.], v. 3, n. 3, p. 46–60, 2026. DOI: 10.47134/jees.v3i3.1196. Disponível em: https://economics.pubmedia.id/index.php/jees/article/view/1196. Acesso em: 28 jun. 2026.