GREEN VS. NON-GREEN PORTFOLIO PERFORMANCE ACROSS BRICS NATIONS: A MULTI-COUNTRY ANALYSIS OF EFFICIENCY, SCALABILITY, RISK-ADJUSTED RETURNS, AND MACHINE LEARNING FORECASTING. Center for Management Science Research, [S. l.], v. 4, n. 4, p. 444–473, 2026. Disponível em: https://cmsrjournal.com/index.php/Journal/article/view/927. Acesso em: 29 apr. 2026.