“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”. 2026. The Science Post 2 (3). https://www.thesciencepostjournal.com/index.php/tsp/article/view/231.