Basurto Hernández, S., and G. Sánchez Trujillo. “Technical Efficiency in Small and Medium-Sized Firms in Mexico: A Stochastic Frontier Analysis”. Estudios Económicos De El Colegio De México, vol. 37, no. 1, Feb. 2022, pp. 103-47, doi:10.24201/ee.v37i1.427.