A. Ojeda, S. Jácome, and M. Guachamín, “Weighted risk-free rate and solvency risk assessment of fixed-income security companies for the Ecuadorian stock market”, Cuestiones Económicas, vol. 31, no. 2, p. Autores: Andrés Ojeda, Sebastián Jácome y Marcela Guachamín, Dec. 2021.