54 research outputs found
Improving bankruptcy prediction in micro-entities by using nonlinear effects and non-financial variables
The use of non-parametric methodologies, the introduction of non-financial variables,
and the development of models geared towards the homogeneous characteristics of
corporate sub-populations have recently experienced a surge of interest in the bankruptcy
literature. However, no research on default prediction has yet focused on micro-entities
(MEs), despite such firms’ importance in the global economy. This paper builds the first
bankruptcy model especially designed for MEs by using a wide set of accounts from 1999
to 2008 and applying artificial neural networks (ANNs). Our findings show that ANNs
outperform the traditional logistic regression (LR) models. In addition, we also report
that, thanks to the introduction of non-financial predictors related to age, the delay
in filing accounts, legal action by creditors to recover unpaid debts, and the ownership
features of the company, the improvement with respect to the use of solely financial
information is 3.6%, which is even higher than the improvement that involves the use
of the best ANN (2.6%)
Hybrid model using logit and nonparametric methods for predicting micro-entity failure
Following the calls from literature on bankruptcy, a parsimonious hybrid bankruptcy model is developed in this paper
by combining parametric and non-parametric approaches.To this end, the variables with the highest predictive power to
detect bankruptcy are selected using logistic regression (LR). Subsequently, alternative non-parametric methods
(Multilayer Perceptron, Rough Set, and Classification-Regression Trees) are applied, in turn, to firms classified as
either “bankrupt” or “not bankrupt”. Our findings show that hybrid models, particularly those combining LR and
Multilayer Perceptron, offer better accuracy performance and interpretability and converge faster than each method
implemented in isolation. Moreover, the authors demonstrate that the introduction of non-financial and macroeconomic
variables complement financial ratios for bankruptcy prediction
Modelling self-sufficiency of microfinance institutions using logistic regression based on principal component analysis
Analizar los factores que influyen en la sostenibilidad es clave para llegar a alcanzarla. En base a la Teoría
de los Recursos y las Capacidades (Grant, 1991), desarrollamos un modelo de gestión que determina los
factores explicativos de la sostenibilidad de las instituciones microfinancieras (IMF). El modelo empírico
se desarrolla aplicando análisis de componentes principales y regresión logística, sobre una muestra de
313 IMF, con 31 variables financieras agrupadas en seis componentes/factores que están teóricamente
relacionadas con su autosuficiencia. Nuestros resultados muestran una relación significativa y positiva
entre el tama˜no y la eficiencia-productividad de las IMF con su sostenibilidad, presentando el factor
riesgo de crédito una relación inversa con respecto a dicha sostenibilidad. Por tanto, sugerimos que las
IMF que quieran continuar desarrollando su actividad bajo un enfoque de autosuficiencia, deben fomentar
una estrategia de gestión orientada hacia: (1) el aumento de la eficiencia-productividad, (2) el control
exhaustivo del riesgo de crédito y (3) el incremento del tama˜no para la consecución de economías de
escala. La capacidad predictiva del modelo es alta, con un área bajo la curva ROC (AUC) del 89.7%.The analysis of the factors that influence sustainability is the key to achieving it. Based on the Theory of
Resources and Capabilities (Grant, 1991), a management model that determines the explanatory factors
of the sustainability of microfinance institutions (MFI) is developed. The empirical model is constructed
by applying a principal component and logistic regression analysis using a sample of 313 MFI, with
31 finance variables, grouped into 6 components/factors that are theoretically associated with selfsufficiency.
The results obtained showed a significant and positive relationship between size and the
efficiency-productivity of the MFI and their sustainability, with the credit risk factor having an inverse
relationship as regards that sustainability. Thus, it may be suggested that the MFI that wish to continue
developing their activity using a self-sufficiency approach must promote a management strategy
oriented towards: (1) an increase in efficiency-productivity, (2) the exhaustive control of credit risk and,
(3) the increase in size in order to achieve economies of scale. The predictive capacity of the model is
high, with an area under the ROC curve of 89.7%
La metodología de los Rough Sets como técnica de preprocesamiento de datos: una aplicación a las quiebras de microempresas familiares
Micro enterprises (MEs) represent over 75 % of all enterprises in the EU, accounting for over 30 % of
employment. However, since the onset of the economic crisis in 2008, this business segment has suffered high rates of
bankruptcies and business closures, destroying many jobs. The construction of models that anticipate insolvency to allow
sufficient time to take appropriate action is important to avoid bankruptcy of the MEs. However, it is difficult to obtain
complete and relevant information for MEs, making it very difficult to be a good fit of the models for predicting
corporate failure for this size of company. Applying Rough Sets technique as a method for pre - processing of the data, in
the present study, we order the variables that best discriminate between solvent / insolvent in order to increase efficiency
in predicting insolvency MEs. Additionally, we provide an application of the technique to family- MEs. Throughout this
process, our results highlight the importance of considering non-financial variables to predict insolvency of MEs.Las microempresas (MEs) representan más del 75% del tejido empresarial de la Unión Europea, acaparando
más del 30% del empleo. No obstante, desde el inicio de la crisis económica en el año 2008, este segmento empresarial
viene sufriendo elevadas tasas de quiebras y cierres empresariales, destruyéndose numerosos puestos de trabajo. La
construcción de modelos que anticipen situaciones de insolvencia que permitan adoptar con suficiente antelación las
medidas oportunas, es clave para evitar la quiebra de las MEs. A pesar de ello, es difícil disponer de información
completa y relevante de las MEs, lo que hace muy difícil un buen ajuste de los modelos de predicción de la insolvencia
empresarial para este tamaño de empresas. Aplicando la técnica de los Rough Sets como un método de preprocesamiento
de los datos, en el presente estudio, ordenamos las variables que mejor discriminan entre MEs
solventes/insolventes en aras a incrementar la eficiencia en la predicción de su insolvencia. Además, ofrecemos una
aplicación de la técnica a MEs de carácter familiar. En todo este proceso nuestros resultados realzan la relevancia de la
consideración de variables no financieras para predecir la insolvencia de las MEs
Factores determinantes de las quiebras en microempresas
La pequeña y mediana empresa es uno de los principales motores de las economías europeas. De entre ellas, un alto porcentaje son microempresas las cuales generan la mayor parte del empleo. En la actualidad este segmento empresarial está sufriendo en mayor medida la situación de crisis financiera, con la consecuente elevación de la tasa de destrucción de las mismas. En este contexto, desarrollar modelos de quiebra específicos para este tamaño empresarial e identificar las variables con mayor poder explicativo constituye un reto. Aquí se aborda la cuestión llegando a ser un trabajo pionero en este campo, en tanto la metodología utilizada como en el sector al que se aplica, caracterizado por una elevada opacidad informativa. Partiendo de variables financieras y no financieras que han sido utilizadas con relativo éxito en el pronóstico de quiebra empresarial en general, tratamos de determinar cuáles de ellas están afectando en mayor medida a la microempresa. Para ello utilizamos una técnica no paramétrica de aprendizaje basada en los rough set, que aplicamos a una muestra de empresas del Reino Unido, con iguales porcentajes respecto a su situación de fallida y a su carácter familiar, por ser esta última característica un factor condicionante de los resultados.The small and medium enterprises are one of the main drivers of European economies. A large percentage consists of microenterprises that generate the most part of employment. Today this business segment is suffering the financial crisis, with the consequent increase in the rate of destruction of the same. So develop specific models for these bankruptcy and identify variables with greater explanatory power is challenging. So this study is becoming a pioneering work in this field in both the methodology used and the sector to which it applies, which has a higher opacity. Based on financial and non-financial variables that have been used with relative success in predicting bankruptcy in general, we try to determine which ones are affecting more to microfirms. We use a nonparametric learning technique based on the rough sets, which apply to a sample of UK firms, balanced on its failed situation and its familiar character, which determines the results
The use of social networks within the European Higher Education Area
Este trabajo recoge la experiencia de tres profesores noveles y una profesora mentora
tras su participación en el proyecto “Formación del Profesorado Novel”, organizado por el
Instituto de Ciencias de la Educación (ICE) de la Universidad de Sevilla durante el curso
académico 2011-2012. La incorporación de las redes sociales a la metodología docente
universitaria, así como un uso intensivo de la plataforma virtual WebCT, se propusieron como dos
de las actividades a desarrollar.
El objetivo del artículo es analizar si se produce una mejora en la participación activa y los
resultados académicos del alumnado al incorporar tecnologías de la información y las
comunicaciones (TICs) como base de las metodologías docentes. Para ello, se ha realizado un
experimento de campo utilizando los resultados de tres asignaturas diferentes durante el curso
académico 2011-2012: Introducción a las Finanzas, de primer curso, y Mercados Financieros
Derivados, de tercer curso, ambas del grado en Finanzas y Contabilidad, y Dirección Financiera,
de cuarto curso de la Licenciatura en Administración y Dirección de Empresas. Con este análisis
buscamos: (a) contribuir a un mejor conocimiento a la hora de aplicar nuevas tecnologías como
metodología docente; y (b) comprobar en qué medida una participación activa del alumno
puede pronosticar una buena nota en el examen.
Tras la aplicación de estadística descriptiva y análisis de regresión logística (logit), nuestros
resultados muestran que aquellos alumnos con una participación más activa en el seguimiento
de la asignatura mejoran significativamente su rendimiento académico.This paper describes the experience of three novice lecturers and a mentor lecturer,
after their participation in the project "Beginner Teacher Training" organized by the Institute of
Education Sciences (ICE) at the University of Seville during the academic year 2011-2012. The
incorporation of social networks to the university teaching methodology and an intensive use of
the WebCT virtual platform were proposed as two of the activities to be developed.
Our objective in this article is to determine if there is an improvement in the student results when
new technologies that require active student participation are incorporated as the basis of the
teaching methodology. To this end, a field experiment is carried out by using the results of three different subjects for the
academic course 2011-2012: Introduction to Finance (first year), Derivatives Financial Markets
(third year), both belong to the degree in Finance and Accounting, and Corporate Finance
(fourth year) of the degree in Business Administration and Management.
With this analysis we aim to: (a) contribute to a better understanding when implementing new
technologies into the teaching methodology, and (b) verify to what extent a student's active
participation can predict a good mark in the exam.
By using descriptive statistics and logistic regression analysis, the results show a marked
improvement in the academic performance of those students whose participation is more active
in the pursuit of the subject
Estimation of sample in the perception of the sports services through the Generalizability Theory
The present study uses the Generalizability Theory (GT) apply into the sport management area aiming to know the accurate sample size
to evaluate the perceived quality. For this purpose, a compound structure was used for the participants (P) and items (I) aspects, with a fully crossed
design. Applying general linear model (GLM), with both aspects, a variance analysis was realised and it estimated the generalization’s precision. The
instrument was a survey composed for 25 items and the sample, in total 330, comes from a fitness centre in the city of Malaga. The obtain results shows
a number of participants using a reliable register (ξρ²(δ) = 0.98), and it estimates the precision level in the generalization to the sample size used
(generalizability coefficient, ξρ²(Δ) = 0.96), assuming in this side an important progress in relation to the efficiency in upcoming evaluations in sports
service
Experiencia en el proyecto de profesores noveles
Este trabajo recoge la experiencia de tres profesores noveles y una
profesora mentora, tras su participación en el proyecto “Formación del
Profesorado Novel” organizado por el Instituto de Ciencias de la Educación
(ICE) de la Universidad de Sevilla durante el curso académico 2011-2012.
Las conclusiones de la experiencia recogen la opinión personal de los
autores abarcando mejoras tanto en aspectos personales como
organizativos relativos a la labor docente
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