• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 178
  • 59
  • 38
  • 36
  • 23
  • 21
  • 20
  • 14
  • 11
  • 9
  • 8
  • 7
  • 6
  • 3
  • 2
  • Tagged with
  • 440
  • 181
  • 156
  • 142
  • 135
  • 86
  • 67
  • 63
  • 62
  • 55
  • 38
  • 36
  • 35
  • 33
  • 31
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

The Chinese telecommunication guest takes the central customer degree of satisfaction and the efficiency analysis discussion

Xu, Yan-ru 27 July 2006 (has links)
With the progress of science and technology and change of market demand, add it under the request for ' the basic telecommunication protocol ' (Basic Telecom Agreement ) of World Trade Organization (WTO ), requiring various countries to open their domestic telecommunication markets in the world, telecommunication industry liberalization , publicly-owned undertaking privatization have already been an inevitable result. So, there are open pressures outside , under the popular double strength catalysis of opening the demand inside, the speeds with open telecommunication industry of the countries all over the world are very fast. Chinese telecommunication Company finish privatization is already different from the past era that engage in without competition 2005, the telecommunication industry is facing so fierce market competition, no matter resource distribution , output are being made up or the scale is being adjusted, all face the great challenge. In order to meet the market choosing the customer as the direction , are managing and must plan with the efficiency of management and " opening " valid management " actively ", just have a chance of struggle for existence. Research this serve for Chinese telecommunication firm network, use the materials to wrap up and hold analytic approach DEA way in place with a net, regard ' staff's number ' , ' the funds budget ' , ' the amount of the assets ' as and invest the key element. With ' customer count ' , is it is it count to inform to explain always , ' total obstacle count ' , as the key element of the output ' satisfaction ' another, collecting Chinese telecommunications from January of 2005 to March of 2006, privatization is during seven months from beginning to end, 27 , such as Taiwan , Penghu and Jinmen ,etc. operate obstacle of customer of the unit and explain and inform the materials, assess the service performance appeared of customer satisfaction while investing, via studying the income result, probe into privatization to the company's firm network communication service quality of Chinese telecommunication, the satisfaction experienced actually, and firm network communication serves the business efficiency between three middle and southern districts of the north of quality wholly, do a analysis discussion . This result of study is found: 1different areas and attribute customer group, to the service quality and satisfaction offered of Chinese telecommunication company, its consent level experiencing the degree actually has difference of showing, it is the most efficient with the center district among them, it is the south occupy time is the north again. 2under the circumstances that telecommunication liberalization operates continuously, the private telecommunication industry of our country person can be expected to shrink with the Chinese disparity of telecommunications gradually, and more efficient than before privatization after Chinese telecommunication privatization, and can be expected to be more efficient in the telecommunication market competition in the future. Propose improving the service item on negative appraisal actively, could maintain its competition advantage 3Participate in comparing and assess 27 decision units, at returns to scale not regular it is the for having 66% the above 0.8 in efficiency in unit in decision ,Taibei district , the pair not west efficiency for DMU 1 with, hit by Li, Tainan, Taitung decision unit of 5 pieces. 4 is shown that CRS (the regular returns to scale ) rises by 1% each time, SATIS (satisfaction ) is reduced by 0.14 by the result of study, have 1% statistics dominance (confidence level). 5 shown a person by the result of study to prove too , SATIS (satisfaction ) rises by 0.01, but does not have dominance . As the budget rises by 1%, SATIS (satisfaction ) rises by 0.01, does not also have dominance .
52

Measuring efficiency of ventilator-dependent integrated respiratory care in Taiwan : An Application of Data Envelopment Analysis

Chi, Chao-Chuan 15 July 2008 (has links)
According to the report of the Bureau of National Healthcare Insurance (NHI) in 1997, the total expenses on ventilator-dependent patients was about 7,100 million yuan in hospital, account for 3% of the cost of one year of health insurance of the whole people. To efficiently control their admission so as to decrease unsuitable utilization of mechanical ventilation, and to achieve the rational growth of medical expenditure, the NHI has developed the perspective payment system for the ventilator-dependent integrated delivery system (IDS) respiratory care program since July 1, 2000. Ventilator-dependent patients, difficult to wean, rely on the mechanical ventilation, using for at least 21 days in succession. The patients are dependent upon long-term mechanical respiratory care. Integrating the different level of respiratory care, IDS program is including ¡§ICU , intensive care unit¡¨, ¡¨RCC, respiratory care center¡¨, ¡¨ RCW , respiratory care ward¡¨ and ¡§home care¡¨ and pay in accordance with the level. The purpose of IDS program is to promote the quality of respiratory care and effectively to utilize the limited medical resources. The data for this research was retrieved from the 2002-2004 ¡§NHI database¡¨ that includes charge and discharge information for 115 hospitals. Of the 115 hospitals analyzed using data envelopment analysis (DEA) technique, to explore the whole efficiency and purely technological efficiency.
53

An Analysis on the Efficiency of Land Administration Offices after computerization in Kaohsiung Area: Application of DEA and SFA

Ho, Chin-yun 21 August 2008 (has links)
Local land administration office is to execute registering of lands and buildings. Its objective is to implement local land policy. In the mean time, its functions are about citizen¡¦s property rights. Because the social, economy and political environment have been changed rapidly, demands for land administration and service quality have been growing as well. Therefore, the first priority work for government is to improve whole administrative efficiency and effectiveness, by using modern technology. It thus needed to electronic-wise land office, to set up a computerization system of land information management so as to provide complete land information, to execute modern administration, to promote competition, and to provide convenient and efficient services. Therefore, the purpose of this study is to research these first-line local offices so as (i) to promote its efficiency after being computerized (ii) to compare the implementing result before and after the computerization in Kaohsiung county and city, and (iii) to study the influences of the computerized process, finally (iv) to suggest local offices decision makers the future direction of improvement. This study uses DEA and SFA to compute their efficiency after computerization of the local land offices in Kaohsiung county and city. To do this, we collect annually statistics and use DEA-Solver software and Frontier 4.1 computer program to evaluate their productivities, and to make an efficiency analysis. The results revealed that the annual average technology efficiency descended before computerization and ascended after computerization for all land offices. CCR model revealed that annual averages of technology efficiency are stable before computerization and it ascended after computerization for all land offices. SFA analysis revealed that annual averageefficiency score slightly ascends before computerization and ascends after computerization except for year 2001. For technology changes, their productivities slightly descends for all land offices in Kaohsiung county but ascends for all land offices in Kaohsiung city. For efficiency slack analysis, all five land offices must reduce their inputs in Kaohsiung county. For output slack, only Chi-Shang land office must expand its output 13.01% so as to reach a relatively inefficient DMU. Between the Kaohsiung county and city, information difference between city and country has influences on efficiency. Land offices in Kaohsiung city have general higher average technology efficiency than those in Kaohsiung county. This study uses DEA and SFA to analyze land offices in Kaohsiung county and city, and it was found that whole efficiency scores increased after computerization. And it is suggested several important problems and the possible directions of productivity improvement in the future for all land offices.
54

Forming of Enterprise's Crisis and Building the Crisis Forecasting Models

Su, Chin-hui 15 June 2009 (has links)
Due to the global competition, the survival of enterprises must face the major test. Since the poor management of the market will increase number of companies, so the crisis early warning model of business has the necessary to establish. The cause of financial crisis is the main source of financial situation of the deteriorating. Therefore, if we could analysis the facets and weights of potential affect factors through the financial and managerial situation of business to judge the crisis cause of a corporation and establish the early warning model is worth to discuss deeply. The precious year of companies¡¦ data that this study collecting are from the Taiwan Securities Exchange 2006/01/01-2008/12/31 which have been out of the open security market based on the analysis standards and omitting the less information and banking, have total 36 enterprises data for analysis. The application of total variables, this study pre-adapts the TEJ business credit risk indicators to integrate the documentation and analysis the fundamental variables. It can be seen that all the factors have the relationship with each other through this study. This highlights a very important message, and also to the crisis among the factors and normal company with a considerable fluctuations. The judging results of DEA-DA model show that most of the company might be affected with some important factors of interpretation in abnormal situation to let the company in crisis cluster. Through Logistic regression analysis results show that our study forecasting model has the great explanatory power to meet the behavior of interpretation with the crisis and normal companies. By the enterprises crisis model of this study building to assess and forecast the crisis situation have the same results with the simplified model constructing with key factors to affect the original model direction. This study shows a very important fact that the crisis forecasting models will not be simplified to change the outcome which also indicating to increase of variables won¡¦t change the results of the assessment. In accordance with this study proposed model, if value positive that would be show more and more vulnerable to crisis. By other words, if value negative that would be more small vulnerable to crisis.
55

The efficiency analysis of the life insurance industry in China : based on the DEA method

Deng, Yinglu 06 January 2011 (has links)
The life insurance industry in China has developed rapidly at nearly average 30% annual growth rate in premium, since the reform in 1980. The enterprise property, the industry organization and the market size have significantly changed in the last two decades, which can be observed through the four representative categories of companies constituted in different period, including the state-owned enterprises, the large domestic enterprises, the medium domestic enterprises and the joint ventures. How to evaluate the efficiency that the companies make use of the resource and contribute to the economy? How to make possible adjustment for each type of companies to improve the efficiency? In this paper we estimate and compare the efficiency of these four categories, according to the two main roles of the life insurance, (1) risk pooling, risk sharing and risk allocation (2) premium collecting, reinvesting for the high rate of return. We use the DEA method, a popular method for analyzing efficiency in management science, to solve the problem. The method replicates the input and output of the unit company by all the other companies in the industry to establish the ideal efficiency frontier, and ranks the real efficiency of each unit company according to the ideal efficiency frontier. In the empirical test, we attain the evaluation of efficiency for each category of companies. We can make appropriate input & output adjustment to them by the ranking of the efficiency. Based on the theoretical results, we provide some practical approaches, including the scale, expense and investment improvement, to promote efficiency of the life insurance industry in China. / text
56

Diferença no nível de eficiência técnica dos municípios cearenses intensivos na pesca de lagosta e camarão

Pires Neto, Raimundo January 2010 (has links)
PIRES NETO, Raimundo. Diferença no nível de eficiência técnica dos municípios cearenses intensivos na pesca de lagosta e camarão. 2010. 36 f. Dissertação (Mestrado Profissional) - Universidade Federal do Ceará, Programa de Pós Graduação em Economia, CAEN, Fortaleza-CE, 2010. / Submitted by Mônica Correia Aquino (monicacorreiaaquino@gmail.com) on 2016-08-26T18:44:30Z No. of bitstreams: 1 2010_dis_rpiresneto.pdf: 77159677 bytes, checksum: fd1efa4d6a7be4da2fe85ad9e33eb258 (MD5) / Approved for entry into archive by Mônica Correia Aquino (monicacorreiaaquino@gmail.com) on 2016-08-26T18:45:07Z (GMT) No. of bitstreams: 1 2010_dis_rpiresneto.pdf: 77159677 bytes, checksum: fd1efa4d6a7be4da2fe85ad9e33eb258 (MD5) / Made available in DSpace on 2016-08-26T18:45:07Z (GMT). No. of bitstreams: 1 2010_dis_rpiresneto.pdf: 77159677 bytes, checksum: fd1efa4d6a7be4da2fe85ad9e33eb258 (MD5) Previous issue date: 2010
57

Eficiência da produção técnica dos cursos de pós - graduação da UFC através de análise envoltória de dados

Pereira, Djalma Siqueira January 2011 (has links)
PEREIRA, Djalma Siqueira. Eficiência da produção técnica dos cursos de pós-graduação da UFC através de análise envoltória de dados. 2001. 73f. Dissertação (mestrado profissional em economia do setor público) - Programa de Pós Graduação em Economia, CAEN, Universidade Federal do Ceará, Fortaleza, CE, 2011. / Submitted by Mônica Correia Aquino (monicacorreiaaquino@gmail.com) on 2013-10-23T20:14:42Z No. of bitstreams: 1 2011_dissert_dspereira.pdf: 1145464 bytes, checksum: c7df59c35ff95c5de297a05cb253feb4 (MD5) / Approved for entry into archive by Mônica Correia Aquino(monicacorreiaaquino@gmail.com) on 2013-10-23T20:14:52Z (GMT) No. of bitstreams: 1 2011_dissert_dspereira.pdf: 1145464 bytes, checksum: c7df59c35ff95c5de297a05cb253feb4 (MD5) / Made available in DSpace on 2013-10-23T20:14:52Z (GMT). No. of bitstreams: 1 2011_dissert_dspereira.pdf: 1145464 bytes, checksum: c7df59c35ff95c5de297a05cb253feb4 (MD5) Previous issue date: 2011 / The technical efficiency of production presents itself as a powerful tool to support decision making by providing tools for implementing actions that provide courses to graduate a better quality of teaching in their academic units. This work intends to analyze the technical efficiency of production of post-graduate of the UFC, with reference to the years 2007, 2008 and 2009 using DEA (Data Envelopment Analysis) - Data Envelopment Analysis. Other objectives that guided this study are: To provide information which could lead to increase actions to improve the methodology of intellectual production; Understanding the reasons why some courses to produce more and better than others so equated and growing; Provide grants to identify where efforts production should be concentrated. We applied the DMU (Decision Making Units) in the model that defines a boundary focused on efficient and inefficient units. In this application we used the DEA-CCR implemented by DEA-Solver software Pro8.0/CCR. Data were extracted from the Data Collection CAPES applications which meet the criteria for assessment of intellectual production, which highlights the nature of bibliographic production and concepts of distribution and production. The model uses as input variables: Number of Number of teachers and learners, and product variables: Total of papers; Publications in full proceedings; Publications in technical production, research projects, work completed dissertations, theses completed work; Average time of titration (months) master's mean titration (months) PhD. The results show that the comparison between the most efficient and least efficient show that the basic characteristic is the use of available resources that came to add more and better production. The production values of course have no direct relation with the number of teachers or students, because it caused a drop in production value by observing these values compared between efficient and inefficient. / A eficiência da produção técnica se apresenta como uma poderosa ferramenta de apoio à tomada de decisões por oferecer instrumentos de implementação de ações que asseguram aos cursos de pós-graduação uma melhor qualidade de ensino em suas unidades acadêmicas. O presente trabalho pretende analisar a eficiência da produção técnica dos cursos de pós-graduação da UFC, tendo como referência os anos de 2007, 2008 e 2009 utilizando a metodologia DEA (Data Envelopment Analysis) – Análise Envoltória de Dados. Outros objetivos que nortearam este estudo são: disponibilizar informações que possam permitir incrementar ações de melhorias na metodologia da produção intelectual; entender as razões que levam alguns cursos a produzirem mais e melhor que outros de forma equacionada e crescente; eornecer subsídios para identificar onde os esforços de produção devem ser concentrados. Aplicou-se a DMU (Decision Making Units) no modelo que define uma fronteira focada nas unidades eficientes e ineficientes. Nessa aplicação foi utilizado o modelo DEA-CCR implementado pelo software DEA-Solver Pro8.0/CCR. Os dados foram extraídos do aplicativo Coleta de Dados CAPES os quais obedecem aos critérios de avaliação da produção intelectual, em que se destaca a natureza da produção bibliográfica e os conceitos da distribuição e da produção. O modelo utilizou como variáveis de insumo: Quantidade de docentes e Quantidade de discentes e como variáveis de produtos: Total de trabalhos completos; Publicações em Anais completos; Publicações em produção técnica; Projetos de pesquisa; Trabalhos de conclusão dissertações; Trabalhos de conclusão Teses; Tempo médio de titulação (meses) mestrado; Tempo médio de titulação (meses) doutorado. Os resultados apontam que a comparação entre as mais eficientes e as menos eficientes mostram que a característica básica é a utilização racional dos recursos disponíveis que veio a agregar uma maior e melhor produção. Os valores da produção dos cursos não têm relação direta com o número dos docentes ou discentes, pois não ocasionaram uma queda no valor da produção ao se observar estes valores comparativamente entre os eficientes e os ineficientes.
58

A eficiência das escolas públicas estaduais do ensino médio regular no Ceará

Dias, José Ricardo Moreira January 2014 (has links)
DIAS, José Ricardo Moreira. A eficiência das escolas públicas estaduais do ensino médio regular no Ceará. 2014. 42f. Dissertação (mestrado profissional) - Universidade Federal do Ceará, Programa de Pós Graduação em Economia, CAEN, Fortaleza, CE, 2014. / Submitted by Mônica Correia Aquino (monicacorreiaaquino@gmail.com) on 2016-02-04T21:15:53Z No. of bitstreams: 1 2014_dissert_jrmdias.pdf: 373661 bytes, checksum: 26edfda6ec121fe41be32c5ade31609f (MD5) / Approved for entry into archive by Mônica Correia Aquino(monicacorreiaaquino@gmail.com) on 2016-02-04T21:16:06Z (GMT) No. of bitstreams: 1 2014_dissert_jrmdias.pdf: 373661 bytes, checksum: 26edfda6ec121fe41be32c5ade31609f (MD5) / Made available in DSpace on 2016-02-04T21:16:06Z (GMT). No. of bitstreams: 1 2014_dissert_jrmdias.pdf: 373661 bytes, checksum: 26edfda6ec121fe41be32c5ade31609f (MD5) Previous issue date: 2014 / This study evaluates the relative technical efficiency of resources / public investment in education in the public schools of the regular high school in the state of Ceará for the year 2012. Employee the model uses the Data Envelopment Analysis (DEA) based on the application of methods linear mathematical programming. The analysis was based on indicators and variables related to expenditures on cost and maintenance of schools, the average daily class hours, the number of computers available to students, the rates of agegrade, approval and notes SPAECE averages. After the construction of the boundary of technical efficiency of these schools, the efficiency scores possible to construct a rank, noting that in 2012, approximately 20% of the surveyed school units were effective in the proposed model. / Este estudo avalia a eficiência técnica relativa dos recursos/investimentos públicos com educação nas escolas públicas do ensino médio regular do Estado do Ceará para o ano de 2012. O modelo empregado utiliza a Análise Envoltória de Dados (DEA), que se baseia na aplicação de métodos de programação matemática linear. A análise foi realizada tendo como base os indicadores e variáveis relacionadas aos gastos com custeio e manutenção das escolas, à média de horas-aula diária, ao número de computadores à disposição dos estudantes, às taxas de distorção idade-série, de aprovação e às notas médias do SPAECE. Após a construção da fronteira de eficiência técnica dessas escolas, os escores de eficiência possibilitaram construir um rank, observando-se que em 2012, aproximadamente, 20% das unidades escolares pesquisadas mostraram-se eficientes no modelo proposto.
59

Caracterização, avaliação econômica e eficiência de escala (DEA) na produção de tilápia em tanques-rede e de tambaqui em viveiros escavados / Characterization, economic evaluation and scale efficiency (DEA) in production of tilapia in cages and tambaqui in earth ponds

Costa, Jesaias Ismael [UNESP] 29 July 2016 (has links)
Submitted by JESAIAS ISMAEL DA COSTA null (jesaiaslbr@gmail.com) on 2016-09-22T12:40:42Z No. of bitstreams: 1 Tese CostaJI.pdf: 2026522 bytes, checksum: 774d050927833445c9989141ec75b1d0 (MD5) / Approved for entry into archive by Juliano Benedito Ferreira (julianoferreira@reitoria.unesp.br) on 2016-09-27T16:30:14Z (GMT) No. of bitstreams: 1 costa_ji_dr_jabo.pdf: 2026522 bytes, checksum: 774d050927833445c9989141ec75b1d0 (MD5) / Made available in DSpace on 2016-09-27T16:30:14Z (GMT). No. of bitstreams: 1 costa_ji_dr_jabo.pdf: 2026522 bytes, checksum: 774d050927833445c9989141ec75b1d0 (MD5) Previous issue date: 2016-07-29 / Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) / A tilápia e o tambaqui são as espécies mais produzidas na piscicultura brasileira. A produção de tilápia é desenvolvida principalmente no sistema em tanques-rede utilizando os grandes reservatórios artificiais e rios das regiões Sudeste, Nordeste e Sul. A produção de tambaqui está concentrada nas regiões Nordeste, Centro-Oeste e Norte, utilizando viveiros escavados com elevado grau de eutrofização. A importância dessas duas espécies para a piscicultura brasileira é inquestionável. Assim, o objetivo deste trabalho foi caracterizar, avaliar economicamente e determinar a eficiência da criação de tilápia em tanques-rede e do tambaqui em viveiros escavados, partindo da hipótese que “esses sistemas são eficientes técnica e economicamente”. Fez-se a caracterização das unidades de excelência que possam servir como modelo para as demais propriedades e identificados os desperdícios gerados nas unidades ineficientes. Para avaliar a criação de tilápia foi escolhida a região do médio Paranapanema-SP, por ser considerada a com maior índice de produtividade e historicamente produtora de peixe. No caso do tambaqui escolheu-se a região metropolitana de Manaus-AM, considerada a região com maior consumo dessa espécie no Brasil e historicamente produtora da espécie. Os dados foram obtidos por meio da aplicação de questionário semiestruturado em que foram identificadas as fases de criação, ciclos de produção, manejos adotados, infraestrutura utilizada, os índices produtivos obtidos e o desembolso monetário. Esses dados possibilitaram a determinação do custo de produção e os indicadores de rentabilidade. Os dados de custo de produção e lucro foram utilizados para determinar a eficiência das pisciculturas utilizando o modelo BCC- Data Envelopment Analyse (DEA). / The tilapia and tambaqui are the fish species most produced in Brazilian. The production of tilapia is mainly developed in the system in cages using large artificial reservoirs and rivers of the Southeast, Northeast and South. The production of tambaqui is concentrated in the Northeast, Midwest and North, using earth ponds with high eutrophication. The importance of these species on the Brazilian fish is unquestionable. The objective of this study was to characterize, economically evaluate and determine the efficiency of tilapia in cages and tambaqui in earth ponds, on the assumption that "these systems are efficient technically and economically." There was the characterization of excellence units that can serve as model for other properties and identified waste generated in inefficient units. To evaluate the tilapia was chosen the region of the Middle Paranapanema-SP, for being considered the most productivity index and historically producing fish. In the case of tambaqui we were chosen the metropolitan region of Manaus-AM, considered the region with the highest consumption of this species in Brazil and historically producing species. The data were obtained by applying a semi-structured questionnaire that were identified phases of creation, production cycles adopted handlings infrastructure used, the obtained production rates and monetary disbursements. These data enabled the determination of the cost of production and profitability indicators. production and profit cost data were used to determine the efficiency of fish farms using the model BCC- Analyse data envelopment (DEA). / CNPq: 140551/2013-1
60

Um estudo comparativo da eficiência das usinas hidrelétricas do Brasil, utilizando a análise por envoltória de dados DEA

Câmara, Eduardo Arruda 31 January 2008 (has links)
Made available in DSpace on 2014-06-12T17:17:04Z (GMT). No. of bitstreams: 2 arquivo3492_1.pdf: 1062000 bytes, checksum: a86d216c2d55eb261f7e47059fd509df (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2008 / As recentes modificações estruturais ocorridas no setor elétrico brasileiro tiveram, em sua essência, como principal finalidade garantir o suprimento de energia do país de forma confiável. Mas, como garantir o fornecimento de energia sem dispor de recursos suficientes para investir na construção de novas unidades de geração, necessárias para o suprimento da energia frente à expansão da economia nacional? Esta escassez de recursos financeiros destinados à geração de energia hidrelétrica pode ser minimizada através de um melhor aproveitamento dos fatores utilizados na produção. A eficiência das unidades de geração deve ser almejada pelas empresas proprietárias das unidades geradoras, pois com ela é possível gerar mais energia sem a necessidade de realizar novos investimentos, apenas realocando os fatores de produção. O presente estudo analisa a eficiência de 87 usinas hidrelétricas brasileiras, utilizando o auxílio da metodologia de análise Data Envelopment Analysis DEA, ou análise por envoltória de dados. Sinteticamente, a metodologia de análise de eficiência DEA representa um dos métodos mais conhecidos e utilizados na literatura mundial que através de programação linear permite identificar a(s) Decision Making Units (DMUs) unidades tomadoras de decisão que fazem parte da fronteira eficiente e as ineficiências relativas das demais unidades, com base nos insumos e produtos utilizados para aferição. Para a análise é relevante que os insumos e produtos escolhidos exerçam forte influência no processo produtivo. Como insumos (inputs) foram utilizados: potência instalada, altura de queda, idade da planta de geração e energia assegurada. Enquanto que os produtos (outputs) escolhidos foram: energia gerada e um índice criado, chamado de produtividade. A eficiência das usinas é analisada nos modelos DEA-CCR (retornos constantes de escala) e DEA-BCC (retornos variáveis de escala), sob a orientação insumo (input), inicialmente com 6 variáveis e, posteriormente, com 5 variáveis. Utilizando o programa EMS, pelo modelo DEA-CCR com 6 variáveis, 19 UHEs foram consideradas eficientes e com 5 variáveis, apenas 8 UHEs obtiveram 100% de eficiência. Já no modelo DEA-BCC, tanto com 6 quanto com 5 variáveis, 27 UHE foram consideradas eficientes. Complementarmente, foram efetuadas análises de eficiência, utilizando algumas características, quanto ao tamanho da UHE, à idade da planta de geração, à altura de queda, à empresa proprietária e à localização geográfica. No capítulo de resultados foram efetuadas, ainda, algumas análises comparativas entre UHEs com e sem reservatório, e com estudo anterior correlato. E, por fim, foi elaborado um quadro demonstrativo com as categorias que demonstraram ser mais eficientes

Page generated in 0.0192 seconds