F. López Herrera, M. R. Martínez-Preece, and M. M. Mosso-Martínez, “Dynamics of relevant economic-financial variables and the returns of the Mexican Pension System of SIEFORES ”, PE, vol. 21, no. 43, pp. 1–30, Dec. 2025, doi: 10.29201/peipn.v21i43.199.