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    Estimating Conditional Labor Productivity Penalties from Non-Communicable Diseases Using Double Machine Learning: Evidence from Mexican Household Data
    (MDPI AG, 2026)
    Domínguez-Miranda, Sergio Arturo
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    ;
    Non-communicable diseases (NCDs) represent a growing challenge for developing countries, as they are among the leading causes of morbidity and mortality within the working-age population. Beyond their effects on health outcomes, NCDs are associated with reductions in labor productivity, which may influence long-term development dynamics through human capital. This study estimates the conditional labor productivity penalty associated with Non-Communicable Diseases (NCDs) among employed workers in Mexico using an observational high-dimensional framework. By addressing high-dimensional confounding under the Conditional Independence Assumption (CIA), the analysis isolates the relationship between NCD status and hourly labor earnings. Using microdata from the Mexican National Survey of Household Income and Expenditure, labor productivity is defined as the ratio of labor income to hours worked. To obtain robust causal estimates, a Double Machine Learning (DML) framework is implemented, integrating regularized regression and machine learning algorithms to control for high-dimensional confounding factors. These covariates include socioeconomic, demographic, and health-related variables, allowing for flexible adjustment of observable heterogeneity across individuals. The empirical findings demonstrate a statistically significant conditional negative penalty of −11.44% (p = 1.03 × 10−11, 95% CI: [−14.59, −8.40]) on hourly labor earnings under the cross-fitted DML specification using XGBoost and Random Forest. To resolve an observational measurement artifact where chronic individuals report artificially inflated hourly wages due to severe hours contraction, a presenteeism adjustment factor ((Formula presented.)) was calibrated. Incorporating this presenteeism correction, the aggregate national economic burden among the employed population is estimated at approximately 496.82 billion pesos annually. The findings suggest that NCDs constitute a relevant constraint on labor productivity at the microeconomic level. The study highlights the importance of prevention-oriented health strategies, workplace health promotion, and early disease management. From a methodological perspective, the results illustrate the usefulness of Double Machine Learning for purging high-dimensional confounding in cross-sectional survey data, providing robust conditional empirical benchmarks for public health policy. © 2026 by the authors. © MPDI © Applied Sciences.
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    Short-term generation planning by primal and dual decomposition techniques
    (Universidad Nacional de Colombia, Facultad de Minas, 2015)
    Marmolejo Saucedo, José Antonio
    ;
    This paper addresses the short-term generation planning (STGP) through thermoelectric units. The mathematical model is presented as a Mixed Integer Non Linear Problem (MINLP). Several works on the state of art of the problem have revealed that the computational effort of this problem grows exponentially with the number of time periods and number of thermoelectric units. Therefore, we present two alternatives to solve a STGP based on Benders’ partitioning algorithm and Lagrangian relaxation in order to reduce the computational effort. The proposal is to apply primal and dual decomposition techniques, which exploit the structure of the problem to reduce solution time by decomposing the STGP into a master problem and a subproblem. For Benders’ algorithm, the master problem is a Mixed Integer Problem (MIP) and for the subproblem, it is a Non Linear Problem (NLP). For Lagrangian relaxation, the master problem and the subproblem are MINLP. The computational experiments show the performance of both decomposition techniques applied to the STGP. These techniques allow us to save computation time when compared to some high performance commercial solvers. ©Universidad Nacional de Colombia: Facultad de Minas, Los autores.
    Scopus© Citations 2  29
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    El coeficiente de Hurst y el parámetro α-estable para el análisis de series financieras Aplicación al mercado cambiario mexicano
    (Universidad Nacional Autónoma de México, Facultad de Contaduría y Administración, 2014)
    Este trabajo aborda la utilidad de estimar, previo a cualquieranálisis, el parámetro de la distribución -estable y el coeficientede Hurst para una serie financiera en periodos de altavolatilidad. Mediante la estimación del coeficiente de Hurst yel parámetro se busca explorar la violación de dos grandessupuestos en la modelación de series financieras: suponer quelas series presentan una distribución normal y que los rendimientossucesivos son independientes; asimismo, se analiza elcaso del tipo de cambio Fix peso-dólar en México en el periodo1992-2011. Uno de los principales resultados es la identificaciónde características fractales y colas pesadas en la seriepara algunos periodos en magnitudes diferenciadas; dichasdiferencias se acentúan en periodos de crisis. Caracterizar laserie mediante estos parámetros a través de un índice permitirámejorar la toma de decisiones sobre el tipo de análisis que esmetodológicamente correcto aplicar en una ventana de tiempoespecífica, ya sea para valuación de activos o para la gestiónde riesgos. ©2012 Universidad Nacional Autónoma de México, Facultad de Contaduría y Administración © El autor.
      10
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    Preface: Intelligent Computing and Optimization : Proceedings of the 6th International Conference on Intelligent Computing and Optimization 2023 (ICO2023) : Volume 3
    (Springer, 2023)
    Vasant, Pandian
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    Weber, Gerhard-Wilhelm
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    Arefin, Mohammad Shamsul
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    ;
    Panchenko, Vladimir
    The sixth edition of the International Conference on Intelligent Computing and Optimization (ICO’2023) was held during April 27–28, 2023, at G Hua Hin Resort and Mall, Hua Hin, Thailand. The objective of the international conference is to bring the global research scholars, experts and scientists in the research areas of intelligent computing and optimization from all over theworld to share their knowledge and experiences on the current research achievements in these fields. This conference provides a golden opportunity for global research community to interact and share their novel research results, findings and innovative discoveries among their colleagues and friends. The proceedings of ICO’2023 is published by SPRINGER (in the book series Lecture Notes in Networks and Systems) and indexed by SCOPUS. ©2023 Springer, ©2023 The authors.
      19
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    Preface: Intelligent Computing and Optimization : Proceedings of the 6th International Conference on Intelligent Computing and Optimization 2023 (ICO2023) : Volume 4
    (Springer, 2023)
    Vasant, Pandian
    ;
    Weber, Gerhard-Wilhelm
    ;
    Arefin, Mohammad Shamsul
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    ;
    Panchenko, Vladimir
    The sixth edition of the International Conference on Intelligent Computing and Optimization (ICO’2023) was held during April 27–28, 2023, at G Hua Hin Resort and Mall, Hua Hin, Thailand. The objective of the international conference is to bring the global research scholars, experts and scientists in the research areas of intelligent computing and optimization from all over theworld to share their knowledge and experiences on the current research achievements in these fields. This conference provides a golden opportunity for global research community to interact and share their novel research results, findings and innovative discoveries among their colleagues and friends. The proceedings of ICO’2023 is published by SPRINGER (in the book series Lecture Notes in Networks and Systems) and indexed by SCOPUS. ©2023 Springer, ©2023 The authors.
      16
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    Impuestos en botanas. Su impacto en precio y consumo en México
    (Fondo de Cultura Económica, 2017)
    Aguilera Aburto, Nelly
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    Sansores Martínez, Diana Nicte-Há
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    Gutiérrez Delgado, Cristina
    Antecedentes: Para contribuir al control de la epidemia de sobrepeso y obesidad en México, se implementó, a partir de enero de 2014, una estrategia integral que incluye un impuesto a bebidas azucaradas y a un grupo de alimentos con alto contenido calórico, entre los que se encuentran las botanas. En este artículo analizamos cómo se comportan los precios de las botanas ante el incremento de los impuestos y estimamos el posible impacto del incremento en precios en el consumo.Métodos: Para el análisis de precios aplicamos un modelo de datos panel con tres escenarios y un modelo de series de tiempo interrumpidas. Para la estimación del posible impacto del incremento en precios en el consumo desarrollamos escenarios de elasticidad y tasas de impuesto. En ambos casos usamos información pública del INEGI.Resultados: Del análisis de precios, los resultados indican que la industria transfirió el impuesto al precio en las botanas en su totalidad. Asimismo muestran que el impuesto vigente de 2014 a 2016 generó una disminución moderada del consumo. Las estimaciones del impacto en el consumo indican que una mayor tasa impositiva generaría mayores disminuciones de consumo y que la medida impositiva sería más efectiva si las demandas son elásticas.Conclusiones: Los resultados proporcionan información para replantear el nivel de tasa impositiva y alertar sobre la necesidad de evaluar la estrategia en su conjunto. ©2017 Fondo de Cultura Económica, Los autores.
      13Scopus© Citations 9
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    Machine learning models in health prevention and promotion and labor productivity: A co-word analysis
    (2024)
    Domínguez-Miranda, Sergio Arturo
    ;
    <jats:p>Objective: The objective of this article is to carry out a co-word study on the application of machine learning models in health prevention and promotion, and its effect on labor productivity. Methodology: The analysis of the relevant literature on the proposed topic, identified in the last 15 years in Scopus, is considered. Articles, books, book chapters, editorials, conference papers and reviews refereed publications were considered. A thematic mapping analysis was performed using factor analysis and strategy diagrams to derive primary research approaches and identify frequent themes as well as thematic evolution. Results: The results of this study show the selection of 87 relevant publications with an average annual growth rate of 23.25% in related production. The main machine learning algorithms used, the main research approaches and key authors, derived from the analysis of thematic maps, were identified. Conclusions: This study emphasizes the importance of using co-word analysis to understand trends in research on the impact of health prevention and promotion on labor productivity. The potential benefits of using machine learning models to address this issue are highlighted and anticipated to guide future research focused on improvements in labor productivity through prevention and promotion of health. Originality: The identification of the relationship between work productivity and health prevention and promotion through machine learning models is a relevant topic but little analyzed in recent literature. The analysis of co-words allows us to establish the reference point of the state of the art in this regard and future trends.</jats:p>
      6Scopus© Citations 9
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    Item type:Publication,
    Preface: Intelligent Computing and Optimization : Proceedings of the 6th International Conference on Intelligent Computing and Optimization 2023 (ICO2023) : Volume 1
    (Springer, 2023)
    Vasant, Pandian
    ;
    Weber, Gerhard-Wilhelm
    ;
    Arefin, Mohammad Shamsul
    ;
    ;
    Panchenko, Vladimir
    The sixth edition of the International Conference on Intelligent Computing and Optimization (ICO’2023) was held during April 27–28, 2023, at G Hua Hin Resort and Mall, Hua Hin, Thailand. The objective of the international conference is to bring the global research scholars, experts and scientists in the research areas of intelligent computing and optimization from all over theworld to share their knowledge and experiences on the current research achievements in these fields. This conference provides a golden opportunity for global research community to interact and share their novel research results, findings and innovative discoveries among their colleagues and friends. The proceedings of ICO’2023 is published by SPRINGER (in the book series Lecture Notes in Networks and Systems) and indexed by SCOPUS. ©2023 Springer, ©2023 The authors.
      20
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    Development of a Digital Twin Driven by a Deep Learning Model for Fault Diagnosis of Electro-Hydrostatic Actuators
    (MDPI, 2024) ;
    Marmolejo Saucedo, José Antonio
    ;
    Köse, Utku
    The first quarter of the 21st century has witnessed many technological innovations in various sectors. Likewise, the COVID-19 pandemic triggered the acceleration of digital transformation in organizations driven by artificial intelligence and communication technologies in Industry 4.0 and Industry 5.0. Aiming at the construction of digital twins, virtual representations of a physical system allow real-time bidirectional communication. This will allow the monitoring of operations, identification of possible failures, and decision making based on technical evidence. In this study, a fault diagnosis solution is proposed, based on the construction of a digital twin, for a cloud-based Industrial Internet of Things (IIoT) system contemplating the control of electro-hydrostatic actuators (EHAs). The system was supported by a deep learning model using Long Short-Term Memory (LSTM) networks for an effective diagnostic approach. The implemented study considers data preparation and integration and system development and application to evaluate the performance against the fault diagnosis problem. According to the results obtained, positive results are shown in the construction of the digital twin using a deep learning model for the fault diagnosis problem of an active EHA-IIoT configuration. ©The authors ©MDPI.
      22Scopus© Citations 12
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    A Timetabling Application for the Assignment of School Classrooms
    (2019)
    Marmolejo Saucedo, José Antonio
    ;
    In this manuscript a group of students from an university of Mexico develop a user-friendly university timetabling tool based on a spreadsheet and using Open-Solve optimization software. The developed tool uses 0–1 integer programming to maximize the number of classes with their respective teacher allocated to a classroom in a certain time schedule. It does not solve only one specific case, the user can introduce each semester’s specific information to the spreadsheet and the tool will automatically generate a schedule that maximizes the number of classes assigned using the given time and classroom resources. Each semester the available times and the teacher can be changed for each class according to the needs for that specific semester. The user does not need to be someone who understands linear programming. The tool is developed on a user-friendly way so that the staff of the school can use it without help from the developers. In this paper we will show how this tool was developed for a smaller example and how it works with a real case. © 2020, Springer Nature Switzerland AG.
      1  11Scopus© Citations 1