Ramírez Hassan, Andrés, and Maribel Serna Rodriguez. “Empirical Validation of CAPM”. Ecos de Economía 16, no. 34 (June 15, 2012): 49–74. Accessed June 20, 2024. https://publicaciones.eafit.edu.co/index.php/ecos-economia/article/view/1642.