Does economic development always clean water in ASEM countries? Nonlinear evidence from dynamic panel kink regression . The Economics and Finance Letters, [S. l.], v. 13, n. 3, p. 10–20, 2026. DOI: 10.18488/29.v13i3.4987. Disponível em: https://archive.conscientiabeam.com/index.php/29/article/view/4987. Acesso em: 4 aug. 2026.