The Cost-of-Capital Effects of Green-Banking Policies: A Multi-Asset Empirical Analysis of U.S. Financial Institutions’ Equity Valuations, Green Bond Premia ("Greenium"), and Portfolio Decarbonization Velocities. The Science Post, [S. l.], v. 2, n. 3, 2026. Disponível em: https://www.thesciencepostjournal.com/index.php/tsp/article/view/231. Acesso em: 15 aug. 2026.