Miguel Ángel Martínez-García's research while affiliated with Instituto Politécnico Nacional and other places
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Publications (7)
En este trabajo, se presentan los derivados climáticos como un instrumento que permite al sector agrícola en México cubrirse ante los riesgos relacionados con el clima. Se realiza un análisis de la factibilidad de un derivado climático para el cultivo del café en los estados de Veracruz, Chiapas y Oaxaca con el fin de transferir los riesgos asociad...
Busca entender el camino del emprendedor desde la idea hasta una empresa consolidada, y determinar las características de este proceso, en el que defino etapas y señales para identificarlas.
The early prediction of bad debtors for revolving credits in Mexico is a relevant issue today. The credit behavior econometric model proposed considers the changes in the characteristics of the consolidated accredited and provides better results than those obtained with the methodology utilized by the CNBV on provision matters. The results obtained...
La presente investigación tiene como propósito mostrar que la política monetaria del Banco Central de México, vista a través del objetivo de saldos de cuenta corriente con la banca (cortos) hasta 2008 y posteriormente con un objetivo de tasa de fondeo bancario a un día, repercute en variables reales, particularmente en el PIB. Para ello se utiliza...
La explicación teórica del comportamiento del tipo de cambio real mexi- cano en el largo plazo por factores internos y externos, desde niveles de precios hasta los niveles monetarios en Estados Unidos, permite proponer un modelo autorregresivo monetario considerando el análisis de los shocks de cada factor y su efecto en el tiempo. Los resultados o...
La predicción temprana de malos deudores para créditos revolventes en México es un asunto de relevancia actual. El modelo econométrico propuesto de comportamiento crediticio considera los cambios en las características de los acreditados consolidados y proporciona mejores resultados que los obtenidos con la metodología utilizada por la CNBV en mate...
The need to predict timely bad customers of revolving loans in Mexico has increased, so it is proposed an improvement to the predictive model used by local regulation. This proposal shows a better analysis of qualitative and quantitative characteristics of consolidated loans than the methodology used by the CNBV on expected losses. The findings of...
Citations
... En ellas, el emprendedor va adquiriendo competencias funcionales al crecimiento de su negocio. Zevallos (2017) propone un modelo de aprendizaje emprendedor en tres etapas: aprendiz, intermedio y avanzado, y las combina con el modelo de desarrollo empresarial del gráfico 1. ...
... La productividad del cultivo del café, entendida ésta como el volumen (en kilogramos, toneladas o quintales) de producción por unidad de superficie, depende de diversos factores climáticos (Allou, Trejo y Martínez, 2018;Baltazar-da Silva et al., 2020;Ceballos-Sierra y Dall'Erba, 2021), biogeográficos (Anhar et al., 2021), económicos y socioculturales, entre otros (Gay et al., 2006;Granados-Ramírez et al., 2014;Ortega y Ramírez, 2013;Usangabandi, 2021). ...
... It is concluded that the returns of the former, measured by the ROA indicator, were extraordinary, although with more significant variability and insolvency; that is, they are riskier than traditional banks. In Mexico, the research carried out by Trejo-Garcia et al. (2014) stands out in which they propose an improvement for the current model used by the CNBV for the selection of credit card users to predict default, minimizing the creation of provisions and increasing the profitability of financial institutions and meeting national and international regulatory requirements. The penetration of this financial instrument in our country compared to other countries is observed in Graph 2. ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/11431281116998706-1675357635488_Q64/Humberto-Rios-Bolivar.jpg)
... Among them, the semi-implicit form is easy to compute and has high stability, which is more widely used in image processing based on partial differential equations. The classical fullvariance denoising method is studied with the development of variational denoising methods and the function of the ROF model, and for the problem of "step effect," a higherorder full-variance improvement method is proposed to suppress the step effect in flat areas of images [17]. Compared with some traditional denoising models, the new model has superior noise removal performance, a higher definition of the denoised image, and better protection of edge information and detailed texture. ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/278795618668546-1443481463156_Q64/Francisco-Venegas-Martinez-2.jpg)
... Durante la crisis financiera se observó una alta concentración de financiamiento interbancario y financiamiento mayorista que acrecentó los efectos de la crisis hipotecaria sub-prime sobre los mercados financieros incentivando la no renovación de este tipo de financiamiento y afectando incluso a entidades con niveles de solvencia adecuados (Cermeño & Roa, 2013;Delfiner, 2007). Por este motivo, entre las lecciones aprendidas de la crisis financiera se comprendió la importancia de contar con sólidos marcos de gestión de liquidez que permita asegurar una línea de defensa contra escenarios de estrés (Cornett et al., 2011;Gatev & Strahan, 2009;Hong et al., 2014;Khan et al., 2017;Trejo García et al., 2017). ...
