Robles-Ortiz, D. y Ramírez-Silva, R.A. 2020. Informality in the Metropolitan Zone of the Valley of Mexico (ZMVM): a spatial econometric and quantile error analysis. Análisis Económico. 35, 88 (feb. 2020), 183–208. DOI:https://doi.org/10.24275/uam/azc/dcsh/ae/2020v35n88/Robles.