Santillán-Salgado, Roberto J., Marissa Martínez Preece, and Francisco López Herrera. 2016. “Modeling the Risk-Return Characteristics of the SB1 Mexican Private Pension Fund Index”. Global Journal of Business, Economics and Management: Current Issues 5 (2):70-76. https://doi.org/10.18844/gjbem.v5i2.370.