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The aim of this study is to devise a sector restructuring model in which all the decision making units (DMUs) satisfy a predefined global efficiency level. The proposal makes several realistic assumptions regarding the merging of DMUs under specific circumstances. The model computes the global efficiency target by giving preference to merging DMUs over saving inputs, hence considering that the affected stakeholders may be resistant to restructuring, and this resistance may have overall negative effects on the image and reputation of the companies and organizations. In addition, the number of constituents in the new entities can be limited by the decision maker after the restructuring process, so that the model also considers a constraint on cardinality. The proposal combines the inverse data envelopment analysis (InvDEA), which computes the merger’s input savings, and the genetic algorithm (GA), which solves the combinatorial problem of identifying the merging units. The proposal is illustrated by two examples from banking and higher education.
Francisco Guijarro; Mónica Martínez-Gómez; Delimiro Visbal-Cadavid. A model for sector restructuring through genetic algorithm and inverse DEA. Expert Systems with Applications 2020, 154, 113422 .
AMA StyleFrancisco Guijarro, Mónica Martínez-Gómez, Delimiro Visbal-Cadavid. A model for sector restructuring through genetic algorithm and inverse DEA. Expert Systems with Applications. 2020; 154 ():113422.
Chicago/Turabian StyleFrancisco Guijarro; Mónica Martínez-Gómez; Delimiro Visbal-Cadavid. 2020. "A model for sector restructuring through genetic algorithm and inverse DEA." Expert Systems with Applications 154, no. : 113422.
The Spanish higher education system needs to adapt to the requirements of the European Higher Education Area and to this end, it is necessary for higher education institutions to improve the quality of university education, leading to an increase in competency-based learning activities aimed at developing the skills of graduates. Since university graduates face a large number of requirements when entering the labour market, they need to develop and constantly update the appropriate skills to carry out their work properly. This paper aims to address two fundamental questions. First, do engineering graduates need acquired skills in Total Quality Management (TQM) to perform their jobs successfully? Secondly, which job profile requires the highest level of Total Quality Management training and knowledge? We carried out different multivariate statistical analyses using a sample of engineering graduates who had been in the labour market for two years. The results show that knowledge of this type of management philosophy is necessary for adequate job performance. The job profile requiring the highest level of skills in TQM is described.
Mónica Martínez-Gómez; José Manuel Jabaloyes Vivas; Andrés Carrión García. Relevance of Skills in Total Quality Management in Engineering Studies as a Tool for Performing Their Jobs. Sustainability 2020, 12, 2065 .
AMA StyleMónica Martínez-Gómez, José Manuel Jabaloyes Vivas, Andrés Carrión García. Relevance of Skills in Total Quality Management in Engineering Studies as a Tool for Performing Their Jobs. Sustainability. 2020; 12 (5):2065.
Chicago/Turabian StyleMónica Martínez-Gómez; José Manuel Jabaloyes Vivas; Andrés Carrión García. 2020. "Relevance of Skills in Total Quality Management in Engineering Studies as a Tool for Performing Their Jobs." Sustainability 12, no. 5: 2065.
Higher Education in Colombia is experiencing a period of shortfalls in funding which has obliged Universities to seek resources from non-governmental sources, in addition to this, the Ministry of National Education (MEN) has implemented a scheme where funds are assigned year on year but this is not considered part of the budgetary base. This study seeks to create a characterisation of the model and proposes the creation of a synthetic performance index based on Multiple Factorial Analysis (MFA). This index enabled us to rank the Higher Education Institutions (HEI) according to their performance and analyse the trajectory of Colombian Universities at a given moment, which meant their evolution over time could be reviewed, moreover within the complexity of the model of indices of results in Colombian higher education, the majority of HEI have a similar, yet, to some degree, distinct structure and display scores which show that within a certain degree of homogeneity, each institution has its strengths in some of the variables considered and its weaknesses in others.
Delimiro Visbal-Cadavid; Mónica Martínez-Gómez; Rolando Escorcia-Caballero. Exploring University Performance through Multiple Factor Analysis: A Case Study. Sustainability 2020, 12, 924 .
AMA StyleDelimiro Visbal-Cadavid, Mónica Martínez-Gómez, Rolando Escorcia-Caballero. Exploring University Performance through Multiple Factor Analysis: A Case Study. Sustainability. 2020; 12 (3):924.
Chicago/Turabian StyleDelimiro Visbal-Cadavid; Mónica Martínez-Gómez; Rolando Escorcia-Caballero. 2020. "Exploring University Performance through Multiple Factor Analysis: A Case Study." Sustainability 12, no. 3: 924.
The aim of this work was to analyse consumers’ attitudes to economic, environmental, and social information on shoe labels, in particular on sustainable consumption, and also to examine the importance of the source of the information. Three steps were followed to develop an appropriate method of extracting, analysing, and interpreting the information contained in the questionnaire used in the survey: an Exploratory Factorial Analysis (EFA) to evaluate the reliability and dimensionality of the questionnaire; a Cluster Analysis (CA) and an Analysis of Variance (ANOVA) to test the ability of the questionnaire to identify different customer categories and the main purchase characteristics included in the questionnaire to characterize each homogeneous group; and a tree classification method using the Chi-Squared Automatic Interaction Detector (CHAID) to characterize the hypothetical scenario of the purchase selection. The results show that consumers, especially those aged between 21 and 30, are concerned about elements related to economic, environmental, and social dimensions on shoe labels. The most important variable in the purchase process was the presence of Environmental Management Systems (e.g., ISO 14001, EMAS). These results could help to optimize the information on shoe labels and would add value by including variables other than environment and price.
Bélgica Pacheco-Blanco; Mónica Martínez-Gómez; Daniel Collado-Ruiz; Salvador F. Capuz-Rizo. Sustainable Information in Shoe Purchase Decisions: Relevance of Data Based on Source. Sustainability 2018, 10, 1170 .
AMA StyleBélgica Pacheco-Blanco, Mónica Martínez-Gómez, Daniel Collado-Ruiz, Salvador F. Capuz-Rizo. Sustainable Information in Shoe Purchase Decisions: Relevance of Data Based on Source. Sustainability. 2018; 10 (4):1170.
Chicago/Turabian StyleBélgica Pacheco-Blanco; Mónica Martínez-Gómez; Daniel Collado-Ruiz; Salvador F. Capuz-Rizo. 2018. "Sustainable Information in Shoe Purchase Decisions: Relevance of Data Based on Source." Sustainability 10, no. 4: 1170.
Purpose: This paper studied the measurement invariance (MI) across web-based and paper-based surveys to evidece if both techniques of data collection can be regarded as equivalent.Design/methodology/approach: We develop a multigroup confirmatory factor analysis (MGCFA) with Maximum Likelihood Estimation to asses meassurement invariance of the Job Diagnostic Survey (JDS) adapted to teaching, with data collected from paper and web surveys. Sample from paper surveys was constituted by 294 student of a Spanish public university in the academic years 2007-08, 2008-09 and 2009-10. Internet surveys were administered through an open source survey application called LimeSurvey. We received 241 completed questionnaires.Findings: Results show that metric invariance, covariance invariance, variance of latent factors invariance and measurement errors invariance can be established between two groups. We can conclude that both methods of collecting data can be considered equivalent.Research limitations/implications: This study was done with a particular sample and strict focus questionnaire and we might not generalize the findings. It should be extended in the future to include other universities and graduate students.Originality/value: Results showed that the factor structures remained invariant across the internet-based and paper-based groups, that is to say, both methods of collecting data can be considered equivalent, with the same factor structure, factor loadings, measurement errors of factors and the same reliability. These findings are useful for researchers since they add a new sample in which web and paper questionnaires are equivalent and for teachers to desire to change the teaching methodology at university, encourage students’ participation and teamwork through active methodologies.
Monica Martinez-Gomez; Juan A. Marin-Garcia; Martha Giraldo O'meara. Testing invariance between web and paper students satisfaction surveys: A case study. Intangible Capital 2017, 13, 879 .
AMA StyleMonica Martinez-Gomez, Juan A. Marin-Garcia, Martha Giraldo O'meara. Testing invariance between web and paper students satisfaction surveys: A case study. Intangible Capital. 2017; 13 (5):879.
Chicago/Turabian StyleMonica Martinez-Gomez; Juan A. Marin-Garcia; Martha Giraldo O'meara. 2017. "Testing invariance between web and paper students satisfaction surveys: A case study." Intangible Capital 13, no. 5: 879.
This paper presents the results of an efficiency study of Colombian public universities in 2012, conducted using the methodology of Data Envelopment Analysis (DEA) and the models CCR, BCC and SBM under output orientation. The main objective is to determine technical, pure technical, scale and mix efficiencies using data acquired from the Ministry of National Education. An analysis of the results shows the extent to which outputs of inefficient Higher Education Institutions (HEIs) could be improved and the possible cause of this inefficiency. The universities were also ranked using a Pareto efficient cross-efficiency model and a study was made of changes to overall productivity between 2011 and 2012. The results showed Tolima, Caldas and UNAD to be the best-performing universities, with Universidad del Pacífico as the worst performer. Malmquist index was applied to analyze the change in productivity from 2011 to 2012. The Universidad de La Guajira showed great improvement in technical efficiency between 2011 and 2012.
Delimiro Visbal-Cadavid; Mónica Martínez-Gómez; Francisco Guijarro. Assessing the Efficiency of Public Universities through DEA. A Case Study. Sustainability 2017, 9, 1416 .
AMA StyleDelimiro Visbal-Cadavid, Mónica Martínez-Gómez, Francisco Guijarro. Assessing the Efficiency of Public Universities through DEA. A Case Study. Sustainability. 2017; 9 (8):1416.
Chicago/Turabian StyleDelimiro Visbal-Cadavid; Mónica Martínez-Gómez; Francisco Guijarro. 2017. "Assessing the Efficiency of Public Universities through DEA. A Case Study." Sustainability 9, no. 8: 1416.