López-Calva, Luis F.
Ortiz-Juarez, Eduardo http://orcid.org/0000-0001-8825-5937
Rodríguez-Castelán, Carlos http://orcid.org/0000-0002-2102-6328
Article History
Received: 8 January 2021
Accepted: 31 July 2021
First Online: 16 August 2021
Declarations
:
: The authors have no conflicts of interest to declare that are relevant to the content of this article.
: The datasets and codes necessary to replicate the exercises in this paper are available from the authors upon request. Supplementary material intended as on line appendix is attached to this paper.