A New Approach to Reducing Search Space and Increasing Efficiency in Simulation Optimization Problems via the Fuzzy-DEA-BCC

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

A dramaturgia de Dea Lohe na peça Inocência: o hibridismo teatral na cena contemporânea

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Transformation of wealth produced into quality of life: analysis of the social efficiency of nation-states with the DEA's triple index approach

Although an essential condition for the occurrence of human development, economic growth is not always efficiently converted into quality of life by nation-states. Accordingly, the objective of this study is to measure the social efficiency-the ability of a nation-state to convert its produced wealth into quality of life-of a set of 101 countries. To achieve this goal, the Data Envelopment Analysis method was used in its standard, cross-multiplicative and inverted form, by means of a new approach called 'triple index'. The main results indicated that the former Soviet republics and Eastern European countries stood out in terms of social efficiency. The developed countries, notwithstanding their high social indicators, did not excel in efficiency; however, the countries of south of Africa, despite having the worst social conditions, were also the most inefficient.

Dramaturgia de Dea Loher na peça Inocência: o hibridismo teatral na cena contemporânea

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Um modelo fuzzy-dea-game para estratégias de produção sob incerteza

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Aircraft selection with DEA's triple index: an approach for sustainability

The objective of this paper is to present a benefit-cost ranking of 127 civil transport aircraft; this ranking was determined considering a new data envelopment analysis (DEA) approach, called triple index, which combines three assessment methods: 1) standard frontier, 2) inverted index; 3) cross-multiplicative index. The analysis used the following inputs: a) market price; b) direct operating costs; and as outputs: a) payload, b) cruise speed; c) maximum rate of climb with a single engine. To ensure the homogeneity of the units, the aircrafts were divided according to the propulsion system (jet and turboprop) and size (regional, narrow-body and wide-body); they were also evaluated according to different ranges in order to identify the aircraft with the best cost-benefit relationship for each option.

Eficiência bancária no Brasil: uma análise envoltória de dados (DEA)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Frontera eficiente de producción en el Primer Nivel de Atención en Salud: modelo DEA ajustado por métodos bayesianos

[ES] La estimación de la eficiencia técnica permite establecer diferencias en la gestión de las unidades de producción (DMUs) e identificar mejoras en la conducta empresarial y modificaciones en el diseño de políticas públicas. Sugiere al gestor la estrategia a seguir para alcanzar la eficiencia y a la administración pública los puntos donde debe centrarse la regulación y control sobre las DMUs. A pesar del hito que ha supuesto para Costa Rica y sus resultados en salud la implementación de la reforma, quedan pendientes dos aspectos fundamentales que evaluar, la calidad de la atención sanitaria y la eficiencia en la producción de servicios de salud. Es precisamente este último aspecto el que motiva esta investigación con una aplicación en el primer nivel asistencial (PNA) en Costa Rica de modelos DEA, clásico y estocástico, entre ellos el DEA-Bayesiano. El objetivo fundamental de esta investigación es estudiar la eficiencia técnica del primer nivel de atención en salud de Costa Rica en el período 2004-2010 mediante modelos DEA tradicionales y a través de métodos bayesianos, aún no utilizados para este fin en este sector.

Comparing Input- and Output-Oriented Measures of Technical Efficiency to Determine Local Returns to Scale in DEA Models

This paper shows how one can infer the nature of local returns to scale at the input- or output-oriented efficient projection of a technically inefficient input-output bundle, when the input- and output-oriented measures of efficiency differ.

Efficiency analysis of information technology and online social networks management : an integrated DEA-Model assessment

This paper analyses the relationship between productive efficiency and online-social-networks (OSN) in Spanish telecommunications firms. A data-envelopment-analysis (DEA) is used and several indicators of business ?social Media? activities are incorporated. A super-efficiency analysis and bootstrapping techniques are performed to increase the model?s robustness and accuracy. Then, a logistic regression model is applied to characterise factors and drivers of good performance in OSN. Results reveal the company?s ability to absorb and utilise OSNs as a key factor in improving the productive efficiency. This paper presents a model for assessing the strategic performance of the presence and activity in OSN.

Smoothed bootstrap Malmquist index based on DEA model to compute productivity of tax offices

This paper analyses the productivity growth of the SUMA tax offices located in Spain evolved between 2004 and 2006 by using Malmquist Index based on Data Envelopment Analysis (DEA) models. It goes a step forward by smoothed bootstrap procedure which improves the quality of the results by generalising the samples, so that the conclusions obtained from them can be applied in order to increase productivity levels. Additionally, the productivity effect is divided into two different components, efficiency and technological change, with the objective of helping to clarify the role played by either the managers or the level of technology in the final performance figures.

A three-stage DEA model to evaluate learning-teaching technical efficiency: Key performance indicators and contextual variables

This study evaluates the technical efficiency of the learning-teaching process in higher education using a three-stage procedure that offers advances in comparison to previous studies and improves the quality of the results. First, it utilizes a multiple stage Data Envelopment Analysis (DEA) with contextual variables. Second, the levels of super efficiency are calculated in order to prioritize the efficiency units. And finally, through sensitivity analysis, the contribution of each key performance indicator (KPI) is established with respect to the efficiency levels without omission of variables. The analytical data was collected from a survey completed by 633 tourism students during the 2011/12, 2012/13 and 2013/14 academic course years. The results suggest that level of satisfaction with the course, diversity of materials and satisfaction with the teacher were the most important factors affecting teaching performance. Furthermore, the effect of the contextual variables was found to be significant.

Belona dea orbi.

Mode of access: Internet.

Themis dea, seu De lege diuina Stephani Pighii ... ; item Mythologia eiusdem in quatuor anni partes /

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