Yes / The traditional Lerner index is limited in its capacity to estimate the level of competition in the economic sector from the perspective that it mainly focuses on the overall level of market power for each individual decision-making unit. Recently, Fukuyama and Tan (J Oper Res Soc, 73:445–453, 2022) estimated the Lerner index by applying the nonparametric data envelopment analysis (DEA) to calculate the marginal cost, which is an important component in the estimation of the Lerner index. Our study further extends the study of Fukuyama and Tan (J Oper Res Soc, 73:445–453, 2022) by estimating the marginal cost under the DEA in a multi-product setting. Our proposed methodology benefits from the ability to find positive marginal costs for all the products and specifies all decision-making units are profit maximizers. In order to achieve this, the marginal cost is estimated by referring to the nearest point on the best practice cost-efficient frontier for the profit-maximizing firms. We then apply our innovative method to the Chinese real estate industry. The result shows that the Chinese real estate industry has higher market power in the residential commodity housing market than that in the commodity housing market. This is also the case for different geographical areas in China. Overall, for both of these two different markets, the level of market power experiences a level of volatility.

The aim of this study is to analyze the relationship between competition and loan portfolio quality in the Peruvian microfinance sector. To make this analysis the market is segmented into three groups of microfinance microfinance institutions IMFs), considering the average volume of its loans. So that, in the first group (large IMFs) entities of higher average volume of loans are located, in the second group (medium IMFs) entities with an average volume of loans are located and finally, in the third group (small IMFs) are entities with lower average loan volumes.This segmentation reflects the heterogeneity of size for loans between IMFs. The results show the Lerner index decreasing over time, for both the group of large IMFs and the group of small IMFs, showing a decrease of market power and increased competition in these two groups of entities. In the group of medium IMFs behavior Lerner index shows a growing trend in the last months of the period studied thus indicating a greater market power and less competition in this group of microfinance operators. On the other hand, an inverse relationship between the Lerner index over delinquency rate in the three groups of IMFs is found, implying that increased competition in the Peruvian microfinance market has deteriorated the quality of loan portfolio the period analyzed. This result is obtained by controlling the behavior of other important variables to explain the delinquency rate such as the business cycle, credit expansion, efficiency and profitability of institutions, and the effect of the international financial crisis of 2008. / El objetivo de este estudio es analizar la relación que existe entre la competencia y la calidad de cartera en el sector microfinanciero peruano en el periodo 2003-2015. Como indicador de competencia se emplea el poder de mercado estimado por el Índice de Lerner y como indicador de calidad de cartera se utiliza la tasa de morosidad. El análisis segmenta el mercado microfinanciero en tres grupos de instituciones microfinancieras (IMF), considerando el volumen promedio de sus colocaciones, de manera que, en el primer grupo se ubican las entidades con un mayor volumen promedio de colocaciones, en el segundo grupo se encuentran las entidades con un volumenmedio de colocaciones y finalmente, en el tercer grupo se ubican las entidades con menor volumen promedio de colocaciones. Esta segmentación refleja la heterogeneidad de tamaño que existe entre estas entidades. Los resultados muestran un Índice de Lerner decreciente, para el primer y el tercer grupo, evidenciando una mayor competencia. En el segundo grupo, el comportamientodel Índice de Lerner muestra una tendencia creciente en los últimos meses del periodo estudiado, reflejando una menor competencia. Por otro lado, se evidencia una relación inversa entre el Índice de Lerner y la morosidad en los tres grupos, lo que implica que el aumento de competencia en el mercado microfinanciero ha generado un deterioro en la calidad de cartera crediticia. Esteresultado se obtiene controlando el comportamiento de otras variables como son: el ciclo económico, la expansión de los créditos, la eficiencia y la rentabilidad de las instituciones, además del efecto de la crisis financiera internacional del 2008.

Essa dissertação apresenta discussões sobre a formação de uma coalizão dominante no poder municipal curitibano, estudando o período de 1985 a 2004. Com esse intuito, utiliza-se da análise de redes sociais para explicar os padrões de relações existentes entre grupos e indivíduos envolvidos nesse processo de formação de coalizão. Há uma forte atração para o estudo de Curitiba a respeito da relação entre governo municipal e planejamento, pois ao longo do tempo, houve uma sobreposição dos planejadores urbanos e dos governos locais, fazendo do sucesso do planejamento urbano sua instância de legitimidade. Assim, o estudo das redes seria um novo enfoque para tratar sobre a continuidade dos grupos que controlam o poder político em Curitiba, sendo que estabilidade eleitoral e dinâmica interna das relações entre Poderes se reforçam mutuamente. A análise de redes sociais contribui também para um estudo preciso das relações políticas em termos descritivos, sem impor a priori uma estrutura à realidade dos atores políticos envolvidos. A metodologia possibilitou esclarecimento sobre as ligações do grupo político de Jaime Lerner na cidade e na compreensão do apoio a ele. Verificou-se que a rede de sustentação deste grupo, durante 16 anos, dentro do período investigado, foi herdada das relações políticas passadas, muito anteriores, fundamentadas no grupo de Ney Braga e que , ao longo do tempo, foi incrementada com elementos novos, principlamente das relações com o legislativo. Mas, não rompeu com muitos dos vínculos iniciais de um período de grande influência deste político. / This dissertation presents the debates on the formation of a dominant coalition in the Curitiba Municipal power, studying the period of 1985 to 2004. With this intention, it is used social network analysis to explain the standards of existing relations between the groups and involved individuals in this process of coalition formation. It has one strong attraction for the study of Curitiba regarding the relation between municipal government and urban planning, therefore to the long one of the time it had an overlapping of urban planners and the local governing making of the success in the urban planning its instance of legitimacy. Thus, the study of networks it would be a new approach to treat on the continuity of the groups that control the power politician in Curitiba, where electoral stability and internal dynamics of relations between Public Powers strengthen mutually. The analysis of social networks also contributes for a necessary study of the politic relations in descriptive terms without imposing an a priori structure reality of the actors. The methodology made possible clarification on the linking of the politician group of Jaime Lerner in the city and the understanding of its support. It was verified that the support network of Jaime Lerner during 16 years, inside of the investigated period, was inherited of previous relations with late politicians based on the Ney Bragas group. To the long on of the time, also, the network was developed with new elements, which did not breach with many of the initial bonds of the period of Ney Bragas great influence.

Essa dissertação apresenta discussões sobre a formação de uma coalizão dominante no poder municipal curitibano, estudando o período de 1985 a 2004. Com esse intuito, utiliza-se da análise de redes sociais para explicar os padrões de relações existentes entre grupos e indivíduos envolvidos nesse processo de formação de coalizão. Há uma forte atração para o estudo de Curitiba a respeito da relação entre governo municipal e planejamento, pois ao longo do tempo, houve uma sobreposição dos planejadores urbanos e dos governos locais, fazendo do sucesso do planejamento urbano sua instância de legitimidade. Assim, o estudo das redes seria um novo enfoque para tratar sobre a continuidade dos grupos que controlam o poder político em Curitiba, sendo que estabilidade eleitoral e dinâmica interna das relações entre Poderes se reforçam mutuamente. A análise de redes sociais contribui também para um estudo preciso das relações políticas em termos descritivos, sem impor a priori uma estrutura à realidade dos atores políticos envolvidos. A metodologia possibilitou esclarecimento sobre as ligações do grupo político de Jaime Lerner na cidade e na compreensão do apoio a ele. Verificou-se que a rede de sustentação deste grupo, durante 16 anos, dentro do período investigado, foi herdada das relações políticas passadas, muito anteriores, fundamentadas no grupo de Ney Braga e que , ao longo do tempo, foi incrementada com elementos novos, principlamente das relações com o legislativo. Mas, não rompeu com muitos dos vínculos iniciais de um período de grande influência deste político. / This dissertation presents the debates on the formation of a dominant coalition in the Curitiba Municipal power, studying the period of 1985 to 2004. With this intention, it is used social network analysis to explain the standards of existing relations between the groups and involved individuals in this process of coalition formation. It has one strong attraction for the study of Curitiba regarding the relation between municipal government and urban planning, therefore to the long one of the time it had an overlapping of urban planners and the local governing making of the success in the urban planning its instance of legitimacy. Thus, the study of networks it would be a new approach to treat on the continuity of the groups that control the power politician in Curitiba, where electoral stability and internal dynamics of relations between Public Powers strengthen mutually. The analysis of social networks also contributes for a necessary study of the politic relations in descriptive terms without imposing an a priori structure reality of the actors. The methodology made possible clarification on the linking of the politician group of Jaime Lerner in the city and the understanding of its support. It was verified that the support network of Jaime Lerner during 16 years, inside of the investigated period, was inherited of previous relations with late politicians based on the Ney Bragas group. To the long on of the time, also, the network was developed with new elements, which did not breach with many of the initial bonds of the period of Ney Bragas great influence.

Made available in DSpace on 2017-07-21T20:31:35Z (GMT). No. of bitstreams: 1 MARTA BEATRIZ.pdf: 990013 bytes, checksum: 06e03c2cabd04c559153223395b31bad (MD5) Previous issue date: 2008-06-19 / Since the decade of 1990 an education speech led by the World Bank (MB) it was impinged Latin America fomenting order words as citizenship, justness, partnership and Shared Administration (GC), with significant alterations in the paper of the National State and being authenticated inside of the public schools. This work is devoted the clarification of the transition of the passage of the school citizen's ideal for the ideal of excellence school, changes that they signaled the passage of the Democratic Administration (1991-1994) in the government's of the State of Paraná administration, Roberto Requião and of the Shared Administration (1995-2002), in Jaime Lerner Government in order to elucidate a doubt on that model implemented in Paraná as for their true objectives: mobilization of the Association of Parents and Masters (APMs) for participation of the parents or decentralization of responsibilities? Does the research investigate as he/she felt the process of reconfiguration of the public education system in the State of Paraná with the application of trainings of GC for AMPs accomplished in the University of the Teacher (UP) in the period from 1995 to 2002? Objectively, he understands the process of reconfiguration of the public education system in Brazil, in specific in the State of Paraná in the delimited period, that they approach the Programs of Institutional Development for the Project of Total Quality (PQE) financed by BM in trainings accomplished in UP for APMs in Faxinal do Céu starting from the Proposal of GC, he interprets what demands of the capitalism assist the education for the State, it accompanies how redefined were being the concepts disseminated in the field of the education in the trainings accomplished with APMs in UP, and, it analyzes as the guidelines of the education programs of the General office of State of the Education of Paraná were implemented (SEED) and the nature of the administrative and pedagogic mechanisms, servants or altered in the sense of rendering them. The research felt in bibliographical studies, analysis of the documents of SEED, observation (in loco) of the works developed by the Consultant ship of Education Mobilization (he AME), analysis of the appraisers' of the Seminars of GC reports accomplished during the period delimited by the research and the comparison of those actions of the State to the Pedagogic Political Project (PPP) of two schools: the State School La Salle and the São João Bosco school, located in the municipal district of Pato Branco. The questionnaires with open and closed subjects were driven 98 people, presidents of APMs, teachers, parents, volunteers and to the managers of the two schools. Interview was accomplished with the organizers of the seminars of GC, the team of the he AME and the coordinator of the magazine Administration in Net, including recordings, filming and pictures in the places, UP and SEED. The results confirmed a model of administration of the education that excelled for the decentralization of responsibilities of the State and for the summons of the civil society for what was called GC. It was ended that the process of reconfiguration of the public education system in the State of Paraná in the period from 1995 to 2002 can be recognized by the results obtained in the researches confirming that GC in the Education of Paraná went a government artifice to decentralize the responsibilities of the State, understood and here registered, that historical period. / Desde a década de 1990 um discurso educacional liderado pelo Banco Mundial (MB) foi impingido à América Latina fomentando palavras de ordem como cidadania, eqüidade, parceria e Gestão Compartilhada (GC), com alterações significativas no papel do Estado Nacional e convalidando-se no interior das escolas públicas. Este trabalho dedica-se a explicitar a transição da passagem do ideal da escola cidadã para o ideal de escola de excelência, mudanças que sinalizaram a passagem da Gestão Democrática (1991-1994) na gestão do governo do Estado do Paraná, Roberto Requião e da Gestão Compartilhada (1995-2002), no Governo de Jaime Lerner a fim de elucidar uma dúvida sobre esse modelo implementado no Paraná quanto aos seus verdadeiros objetivos: mobilização da Associação de Pais e Mestres (APMs) para participação dos pais/comunidade ou descentralização de responsabilidades? A pesquisa investiga como se deu o processo de reconfiguração do sistema de ensino público no Estado do Paraná com a aplicação de treinamentos de GC para as AMPs realizados na Universidade do Professor (UP) no período de 1995 a 2002? Objetivamente, compreende o processo de reconfiguração do sistema de ensino público no Brasil, em específico no Estado do Paraná no período delimitado, que abordam os Programas de Desenvolvimento Institucional pelo Projeto de Qualidade Total (PQE) financiado pelo BM em treinamentos realizados na UP para APMs em Faxinal do Céu a partir da Proposta da GC, interpreta a que exigências do capitalismo atende a educação pelo Estado, acompanha como estavam sendo redefinidos os conceitos disseminados no campo da educação nos treinamentos realizados com as APMs na UP, e, analisa como se implementaram as diretrizes dos programas educacionais da Secretaria de Estado da Educação do Paraná (SEED) e a natureza dos mecanismos administrativos e pedagógicos, criados ou alterados no sentido de concretizálos. A pesquisa se deu em estudos bibliográficos, análise dos documentos da SEED, observação (in loco) dos trabalhos desenvolvidos pela Assessoria de Mobilização Educacional (AME), análise dos relatórios dos avaliadores dos Seminários de GC realizados durante o período delimitado pela pesquisa e a comparação dessas ações do Estado ao Projeto Político Pedagógico (PPP) de duas escolas: o Colégio Estadual La Salle e o Colégio São João Bosco, localizados no município de Pato Branco. Os questionários com questões abertas e fechadas foram dirigidos a 98 pessoas, presidentes das APMs, professores, pais, voluntários e aos gestores das duas escolas. Foi realizada entrevista com os organizadores dos seminários de GC, a equipe da AME e o coordenador da revista Gestão em Rede, incluindo gravações, filmagem e fotografias nos locais, UP e SEED. Os resultados confirmaram um modelo de gestão da educação que primou pela descentralização de responsabilidades do Estado e pela convocação da sociedade civil para o que se denominou GC. Concluiu-se que o processo de reconfiguração do sistema de ensino público no Estado do Paraná no período de 1995 a 2002 pode ser reconhecido pelos resultados obtidos nas pesquisas confirmando que a GC na Educação do Paraná foi um artifício governamental para descentralizar as responsabilidades do Estado, compreendido e aqui registrado, esse período histórico.

Submitted by Edineia Teixeira (edineia.teixeira@unioeste.br) on 2018-02-21T13:25:29Z No. of bitstreams: 2 Helloysa_Moreira2016.pdf: 1279249 bytes, checksum: b63e996a485b607fd64d5e3ffa7e7751 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2018-02-21T13:25:29Z (GMT). No. of bitstreams: 2 Helloysa_Moreira2016.pdf: 1279249 bytes, checksum: b63e996a485b607fd64d5e3ffa7e7751 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2016-03-10 / This dissertation is the result of studies on the Historical-Critical Pedagogy (HCP), with the time delimitation the period 1995 to 2002. The issue of research starts from the assumption that Historical-Critical pedagogical theory was present in educational discussions of Paraná state during a consistent period, it started in the management of José Richa (1983-1987), having continuity in Álvaro Dias government (1988-1990) and ended in Roberto Requiao's administration (1991-1994). Thus, from the publication of the Currículo Básico para a Escola Pública do Estado do Paraná - CBEP (Basic Curriculum for Public School of Paraná) in 1990, the idea has spread that HCP was the pedagogical concept of this document and therefore theoretical foundation of the state's schools. Thereby, from the government Jaime Lerner, this concept would have been supplanted by other pedagogical proposals. From there, we question whether there was a movement against the HCP in the period in which the state of Paraná was governed by Jaime Lerner. In front of this problem, we try to verify how it developed, what features assumed the HCP in Parana during what is known as a major neoliberal governments that the state ever had. We emphasize first that from the research taken as a reference, it is possible to assert that the Historical-Critical Pedagogy is not expressed in the CBEP, and also not consolidated as pedagogical theory of the state. Still, with the publication of Curriculum Basic in 1990, Roberto Requião took office at the time of implementation of this proposal. However, Requião stimulated plurality of pedagogical concepts, educational innovations, school autonomy and the theory of citizen school thus, did not allow the continuation of discussions about HCP. What was evident is that there was a dislocation in CBEP organization process even at the time of preparation, which continued most acutely from Roberto Requiao government when it "shelved" the curriculum, and ended in government Jaime Lerner, by the implementation of an educational policy that distanced much of the historical-critical pedagogical theory. / A presente dissertação é resultado de estudos acerca da Pedagogia Histórico-Crítica (PHC), tendo como delimitação temporal o período de 1995 à 2002. A problemática da pesquisa partiu do pressuposto de que, a teoria pedagógica histórico-crítica esteve presente nas discussões educacionais do estado do Paraná durante um período consistente, iniciada na gestão de José Richa (1983-1987), tendo continuidade no governo Álvaro Dias (1988-1990) e encerrada no governo Roberto Requião (1991-1994). Nesse sentido, a partir da publicação do Currículo Básico para a Escola Pública do Estado do Paraná (1990) disseminou-se a ideia de que a PHC era a concepção pedagógica deste documento e, portanto, embasamento teórico das escolas paranaenses. Desse modo, a partir do governo Jaime Lerner, esta concepção teria sido suplantada por outras propostas pedagógicas. A partir daí, questionamos se ocorreu um movimento contrário à PHC no período em que o estado do Paraná foi governado por Jaime Lerner. Diante desta problemática, intentamos verificar como se desenvolveu e que características assumiu a PHC no Paraná durante aquele que é conhecido como um dos principais governos neoliberais que o Estado já teve. Mediante os estudos preconizados para responder a problemática inicialmente colocada, salientamos primeiramente que, a partir das pesquisas tomadas como referência, é possível afirmar que a Pedagogia Histórico-Crítica não é a concepção expressa no CBEP, e também não se consolidou enquanto teoria pedagógica do estado. Mesmo assim, com a publicação do Currículo Básico em 1990, Roberto Requião assumiu o governo no momento de implementação desta proposta. Todavia, Requião estimulou a pluralidade de concepções pedagógicas, inovações educacionais, autonomia da escola e a teoria da escola cidadã, assim, não possibilitou a continuidade das discussões acerca da PHC. O que foi evidenciado é que ocorreu uma desarticulação no processo de organização do CBEP ainda no momento de sua elaboração, que continuou de forma mais aguda a partir do governo Roberto Requião quando este “engavetou” o Currículo, e findou no governo Jaime Lerner, mediante a implementação de uma política educacional que se distanciava em muito da teoria pedagógica histórico-crítica.

El presente estudio tiene como objetivo determinar la relación entre el poder de mercado del sistema de seguros peruano y su participación de mercado, usando datos mensuales entre el 2010 y 2019. En primer lugar se construye el índice de Lerner como un indicador de poder de mercado no competitivo. En efecto, se estimó el costo marginal de cada aseguradora en su periodo de tiempo para poder conseguir el índice de Lerner de cada firma. De manera que se obtenga la relación entre poder mercado y participación, probando la relación a través del modelo de cournot para cada periodo de tiempo en análisis. Después, empleado los datos panel para las aseguradoras dentro del marco temporal en estudio. Se aplica tres modelos para la estimación de los determinantes hipotéticos del poder de mercado, mínimos cuadrados ordinarios corregidos (OLS-PCSE), RE y el sistema GMM. En este contexto, el poder de mercado del sector de seguros peruano fue explicado también por el tamaño, costo de eficiencia, concentración de mercado, apalancamiento y contratos de reaseguros, al igual que participación de mercado. Específicamente, se encontró que las aseguradoras especializadas, la participación y contratos de reaseguro influyen en un mayor poder de mercado y ejercer un alto poder de mercado con fijación de precios mientras que el tamaño no influye en gran medida para ejercer un mayor poder de mercado. / The present study aims to determine the relationship between the market power of the Peruvian insurance system and its market share, using monthly data between 2010 and 2019. First, the Lerner index is constructed as an indicator of non-competitive market power. In effect, the marginal cost of each insurer in its time period was estimated in order to obtain the Lerner index of each firm. In order to obtain the relationship between market power and market share, testing the relationship through the Cournot model for each time period under analysis. Then, using the panel data for the insurers within the time frame under study. Three models are applied to estimate the hypothetical determinants of market power, ordinary least squares corrected (OLS-PCSE), RE and the GMM system. In this context, the market power of the Peruvian insurance sector was also explained by size, cost efficiency, market concentration, leverage and reinsurance contracts, as well as market share. Specifically, it was found that specialized insurers, leverage and reinsurance contracts influence greater market power and exert high market power with pricing while size does not influence to a great extent to exert greater market power. / Trabajo de investigación

This thesis examines the relationship between the real exchange rate and trade balance in eight countries with different level of development for the period 1991- 2012. Using merely exchange rate to improve the trade balance refers to price- competitiveness and relies on the satisfaction of Marshall-Lerner condition. Additionally, we articulate the influence of other underlying factors, defined as "non- price competitiveness", proxied with capital stock variable. A Vector Error Correction Model, based on Johansen's Methodology was implemented in our two econometric specifications. The key findings of the classical trade model indicate that M-L condition is met in five countries and devaluation of domestic currency would improve their trade balance in long run. VECM results from second model, which extended the traditional imperfect substitutes framework to include non-price competitiveness factor, shows pronounced influence of product quality on trade balance, capital stock variable being significant in most of the cases. The results show that trade balance reacts to both changes in relative prices and product differentiation, thus non-price competitiveness factors must not be neglected by policy makers. Our findings also indicate the existence of J-curve pattern, as reflected by short-run...

The first essay compares six common models, linear, quadratic, Cobb-Douglas, translog, logarithmic, and transcendental, to estimate wheat yield and area functions for Saudi Arabia. Data cover 1990-2016 for all the variables that affect wheat supply. After testing the models using Box-Cox, multicollinearity, and autocorrelation tests, we decide that the Cobb-Douglas models provide the best fit for both yield and area. We find the price elasticity of wheat is inelastic. Yield price elasticities are more inelastic than area elasticities. The impact of government policy number 335 has a larger effect on area than yield. The cultivated area of wheat, the one-year lag of yield, and the number of machines per hectare are the most influential factors affecting wheat yield. The primary factors influencing the area models are a one-year lag of both cultivated area and yield, as well as the number of machines per hectare. The second essay estimates the residual demand elasticity that rice exporters face in Saudi Arabia. The inverse residual demand methods, as proposed by Reed and Saghaian 2004, are used for rice exporters to Saudi Arabia during the period 1993-2014. Estimation results of the elasticities of the residual demand indicate that Australia, India, and Pakistan enjoy market power, while Egypt faces a perfectly elastic demand curve. We find Thailand and the US had positive inverse residual demand which means they also have no market power. The last essay is about the virtual water trade in Saudi Arabia. Using the concept of virtual water introduced by Allan 1994 and developed by Hoekstra and Hung (2002), we estimate virtual water trade for 20 crops of Saudi Arabia during 2000-2016. Our result shows the average virtual water trade was 12.5 billion m3/year. Saudi has net virtual water imports, with the most significant virtual water imports coming from cereals & alfalfa and vegetables; and there is net virtual water export of fruit. Saudi virtual water trade reduces pressure on water resources by 52%. Distance plays a role in Saudi virtual water export; we found that more than 90% of exports go to neighboring countries, including 45% to GCC countries. More than 30% of virtual water imports come from Europe. A Gravity model is used to investigate whether water scarcity variables influence trade. We compare the OLS, Fixed effects, Random effects, and PPML estimators to get the best model. The AIC, and tests for multicollinearity, and heteroskedasticity assist in determining estimation procedures and the final models. We cluster the errors by distance to improve the specific country effect variables such as economic mass variables. For the cereals and alfalfa group, we find that water-related variables influence virtual water imports of cereals, millet, sorghum, corn, barley, and sesame. Therefore, we suggest that a basic gravity model be applied to the other crops. In the vegetable group, we find that related water variables impact virtual water trade for all crops except marrow. Dates are the only fruit crop that are not influenced by the water-related variables.

本文主要進行東亞十國競爭程度分析，研究期間為1994年到2008年，除比較各國差異外，也分析東亞各國在歷經亞洲金融風暴洗禮前後的差異。本研究使用非結構法之Panzar & Rosse檢定法為主軸，並採用較新的分量迴歸模型，從而推論在不同分量上的市場競爭型態，再與結構性指標CR4和HHI結果做比較，另外再採用近年來文獻也常提及的Lerner index方法，作為競爭度變數，探討銀行集中度和銀行效率對市場競爭的影響。發現東亞各國銀行業競爭程度為高，且在經歷亞洲金融風暴前後皆為獨占性競爭。 / This paper investigates the degree of market power in the East Asia banking systems during the years of 1994–2008 using the ‘H-statistic’ by Panzar and Rosse , uses quantile regression to analyze the information between the standardized total revenue and the H-statistic , compares the result with concentration k-bank concentration ratio (CRk) and Herfindahl–Hirschman Index (HHI) , and presents an empirical study on the impact of bank concentration and bak efficiency on bank competition by using the Lerner index. This paper finds that banks in the East Asia operate under monopolistic competition before and after the Asian Financial Crisis.