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  • 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.
41

Essays in microeconomic theory

Hedlund, Jonas 30 June 2011 (has links)
No description available.
42

The HomeCom Project : an Analysis of Collective Action between Competitors and Educational and Municipal Institutions

Nilsson, Erika, Peterson, Frida January 2002 (has links)
The object of this thesis is to analyse how a co-operational network can come about, operate and progress to contribute to industrial dynamics within the locality. The thesis is a case-study of the HomeCom Project, to learn whether this project has the required features to contribute to the clustering process and thus higher levels of industrial dynamics and competitive advantage of the home communications industry in Linköping. The theoretical platform is based on Porter’s Diamond-model, which explains the occurrence of clusters. Theories of external economies complement Porter’s theories, while oligopoly theory will be introduced to offer a different perspective. The empirical findings show that the HomeCom Project may be considered to contribute to the clustering and in consequence promote industrial dynamics and competitive advantage. But there are also difficulties and attitudes that may impede the reaching of the project’s goals.
43

Information use and decision making in groups : a study of an experimental oligopoly market with the use of a business game

Edman, Jan January 2000 (has links)
The purpose of this study is to take some steps towards a better understanding of how groups in firms use information in their decision making when competing in markets. A business game is used as an experiment, since it has the advantages that the playing of the game can be repeated many times, the decision making situation can be controlled and monitored, and the information in the game can be altered. The game used here deals with five firms, each with 2- 9 participants, competing on the same experimental oligopoly market by making repeated decisions on price, advertising, investments and production. Both students and professionals have played the game extensively during a decade. The market model in the business game has dynamic properties, with production capacity, stocks and long-term effects of advertising. Due to the relative complexity of the market model, optimal solutions for more than one period could only be computed numerically. The methods used for determining these optimal solutions are described, since they can also be useful when determining solutions in other market models. The optimal solutions to this model are compared to the decisions that the firms made when the business game was played. It was found that the dynamic non-cooperative (Nash) solution gives the best description for the decisions made in the games. In the experiments, different amounts of information were made available to the firms. The decisions differed depending on what information the firms had available. Additional information proved to have a positive value only when some, but not all, of the firms received this information. Furthermore, it was found that firms with the same amount of available information made different decisions. These differences in decisions could be explained by the decision making processes in the groups, but not by the compositions of the groups. The firms in the business game appeared rigid in their decision making. Even after the game had ended, they were committed to their earlier decisions even when these decisions had been less successful. / Diss. Stockholm : Handelshögsk.
44

none

Chen, Li-Yan 29 July 2002 (has links)
none
45

The HomeCom Project : an Analysis of Collective Action between Competitors and Educational and Municipal Institutions

Nilsson, Erika, Peterson, Frida January 2002 (has links)
<p>The object of this thesis is to analyse how a co-operational network can come about, operate and progress to contribute to industrial dynamics within the locality. The thesis is a case-study of the HomeCom Project, to learn whether this project has the required features to contribute to the clustering process and thus higher levels of industrial dynamics and competitive advantage of the home communications industry in Linköping. The theoretical platform is based on Porter’s Diamond-model, which explains the occurrence of clusters. Theories of external economies complement Porter’s theories, while oligopoly theory will be introduced to offer a different perspective. The empirical findings show that the HomeCom Project may be considered to contribute to the clustering and in consequence promote industrial dynamics and competitive advantage. But there are also difficulties and attitudes that may impede the reaching of the project’s goals.</p>
46

A thematic analysis of anticompetitive behaviour in the credit rating process of structured finance

Onjewu, Adah-Kole January 2018 (has links)
The credit rating industry is characterised by the high concentration of a small number of firms and, allegedly, this concentration stems from certain anticompetitive behaviours made manifest by the dominant firms in the industry. Therefore, as has yet to be done in empirical research, the purpose of this study is to carry out an exploration of the antitrust behaviours supposedly perpetuated by agents in the credit rating process for debt finance. The aim is to determine what influences, if any, the interactions and relationships in the rating process have on the sustenance of the oligopoly in the rating industry and on impeding new rating agencies trying to enter the market. Through the application of thematic analysis, this study aims to gather evidence on the behavioural motivations of rating analysts and underwriters in the rating process. Furthermore, the theoretical framework suggests notching and tying to be the anticompetitive behaviours that strengthen the oligopoly. Hence, the study finds that the drivers of anticompetitive notching in the rating process are the taking of haircuts and mapping, the guise of protecting investors’ interests, punitive ratings and a quid pro quo rating norm. Similarly, it finds that the enablers of anticompetitive tying are continuous dealing in the rating process, covert negotiation, repeat rating requests, ancillary services and the regulatory overdependence on credit ratings. In addition, this thesis explores the impediments of new rating agencies trying to enter the credit rating industry and finds that new rating agencies face peculiar market, regulatory and organisational barriers. Firstly, the market barriers comprise arbitrage, economic rents, investor preference and the issuer-pay model. Secondly, the regulatory barriers are discretionary regulation, new regulations and the designation of nationally recognised statistical rating organisation status. Lastly, the organisational barriers include down-trading, inadequate funding, the lack of geographic spread, low added intellectual value and a narrow product and service scope. Finally, this research recommends for regulatory authorities to agree to a harmonised convention on the recognition of credit rating agencies that may lead to the emergence of new robust agencies. It also proposes the standardisation of mapping practices in the notching process to reduce rating variance among credit rating agencies. Lastly, the research offers evidence of notching for competition and tying through informal services that may substantiate antitrust liability for possible antitrust intervention.
47

Análise da indústria de carne bovina no Rio Grande do Sul : movimentação de bovinos para abate entre as mesorregiões geográficas & concentração da indústria / Analysis of beef industry in rio grande do sul: transit of cattle for slaughter among geographical mesoregions & industry concentration

Leães, Ana Paula Steiner January 2015 (has links)
Este trabalho analisou o cenário em que está inserida a comercialização de bovinos para abate, no estado do Rio Grande do Sul. Para isto, foram utilizados dados obtidos através das Guias de Trânsito Animal (GTAs), entre os anos de 2010 (ano em que o sistema informatizado para GTAs foi implantado na Secretaria da Agricultura, Pecuária e Agronegócio - SEAPA) a 2013. Também foram utilizados dados da Declaração Anual de Rebanho, fornecidos pela SEAPA. Um dos diferenciais deste trabalho é esta fonte única, com documentos obrigatórios a todos que comercializam animais e o agrupamento por mesorregião geográfica das informações obtidas. Para o entendimento deste cenário, foram utilizadas como aporte teórico a Teoria da Localização, que considera a otimização da localização de uma firma, e a Organização Industrial, que através do Modelo E-C-D proporciona subsídios para caracterização da concentração em uma indústria. Os resultados mostraram que o número de animais abatidos é diferente entre as mesorregiões geográficas. Os matadouros-frigoríficos recebem animais para abate provenientes da mesorregião geográfica em que se estão localizados, mas também de outras mesorregiões do RS, em diferentes proporções. Nas análises, as mesorregiões geográficas Centro Oriental e Metropolitana destacaram-se pelo maior número de animais abatidos. No entanto, o rebanho nestas mesorregiões ainda não foi o suficiente para a demanda gerada pelo mercado consumidor, que está muito próximo devido as grandes cidades que compõem estas mesorregiões, como Santa Maria e Porto Alegre. A Mesorregião Sudoeste é a terceira que mais abateu animais. A quantidade abatida nesta mesorregião é composta por 74% de animais da própria mesorregião Sudoeste, porém, o seu rebanho foi uma importante fonte de animais para as demais mesorregiões. Neste cenário, o estado do RS apresentou mais de 60 mil ofertantes (pecuaristas) em 2013, e o número de demandantes (matadouros-frigoríficos) chegou a 459. O matadouro-frigorífico que mais abateu em 2010 perdeu participação de mercado até 2013, e frigoríficos menores conseguiram aumentar as suas participações, havendo uma tendência de maior equilíbrio entre as empresas. Não existe concentração na indústria de carne bovina, e as medidas de concentração analisadas mostram índices cada vez menores. / This study analyzed the scenario in which the marketing of cattle for slaughter is inserted in the state of Rio Grande do Sul. For this, it was used data of Animal Transit Guides (GTAs) for slaughter since 2010 - year that these guides were made available electronically by the Secretariat of Agriculture, Livestock and Agribusiness (SEAPA) - to 2013. It was also used data from Herd Annual Statement, supplied by SEAPA, which is one of the remarkable points of this paper, the unique and reliable source that was provided with a set of mandatory documents that all cattle sellers must have. Based on information that was founded, it was used the theory of location, considering the optimization of the location of a firm, and the Industrial Organization, through the S-C-P model, focusing on the structure that allows one to see if there was concentration in the industry. The Metropolitan ant Eastern Center Mesoregions are the ones that slaughter the most, having their own production as their raw material. However, these cattle are still not enough for the demand generated by the consumer market, which live close to these centers. The Southwest Mesoregion slaughters a great number of animals, with 74% of these slaughtered cattle coming from their own production and it is still an important source of animals for other Mesoregions. The number of suppliers (farmers) exceeded 60,000 in 2013, and the slaughter houses had reached 459. There is no concentration in the beef industry, and analyzed concentration measurements show dwindling numbers. The most important slaughterhouse in 2010 lost market by 2013, and smaller slaughterhouses were able to increase their holdings, with a trend towards greater balance between companies.
48

Análise da indústria de carne bovina no Rio Grande do Sul : movimentação de bovinos para abate entre as mesorregiões geográficas & concentração da indústria / Analysis of beef industry in rio grande do sul: transit of cattle for slaughter among geographical mesoregions & industry concentration

Leães, Ana Paula Steiner January 2015 (has links)
Este trabalho analisou o cenário em que está inserida a comercialização de bovinos para abate, no estado do Rio Grande do Sul. Para isto, foram utilizados dados obtidos através das Guias de Trânsito Animal (GTAs), entre os anos de 2010 (ano em que o sistema informatizado para GTAs foi implantado na Secretaria da Agricultura, Pecuária e Agronegócio - SEAPA) a 2013. Também foram utilizados dados da Declaração Anual de Rebanho, fornecidos pela SEAPA. Um dos diferenciais deste trabalho é esta fonte única, com documentos obrigatórios a todos que comercializam animais e o agrupamento por mesorregião geográfica das informações obtidas. Para o entendimento deste cenário, foram utilizadas como aporte teórico a Teoria da Localização, que considera a otimização da localização de uma firma, e a Organização Industrial, que através do Modelo E-C-D proporciona subsídios para caracterização da concentração em uma indústria. Os resultados mostraram que o número de animais abatidos é diferente entre as mesorregiões geográficas. Os matadouros-frigoríficos recebem animais para abate provenientes da mesorregião geográfica em que se estão localizados, mas também de outras mesorregiões do RS, em diferentes proporções. Nas análises, as mesorregiões geográficas Centro Oriental e Metropolitana destacaram-se pelo maior número de animais abatidos. No entanto, o rebanho nestas mesorregiões ainda não foi o suficiente para a demanda gerada pelo mercado consumidor, que está muito próximo devido as grandes cidades que compõem estas mesorregiões, como Santa Maria e Porto Alegre. A Mesorregião Sudoeste é a terceira que mais abateu animais. A quantidade abatida nesta mesorregião é composta por 74% de animais da própria mesorregião Sudoeste, porém, o seu rebanho foi uma importante fonte de animais para as demais mesorregiões. Neste cenário, o estado do RS apresentou mais de 60 mil ofertantes (pecuaristas) em 2013, e o número de demandantes (matadouros-frigoríficos) chegou a 459. O matadouro-frigorífico que mais abateu em 2010 perdeu participação de mercado até 2013, e frigoríficos menores conseguiram aumentar as suas participações, havendo uma tendência de maior equilíbrio entre as empresas. Não existe concentração na indústria de carne bovina, e as medidas de concentração analisadas mostram índices cada vez menores. / This study analyzed the scenario in which the marketing of cattle for slaughter is inserted in the state of Rio Grande do Sul. For this, it was used data of Animal Transit Guides (GTAs) for slaughter since 2010 - year that these guides were made available electronically by the Secretariat of Agriculture, Livestock and Agribusiness (SEAPA) - to 2013. It was also used data from Herd Annual Statement, supplied by SEAPA, which is one of the remarkable points of this paper, the unique and reliable source that was provided with a set of mandatory documents that all cattle sellers must have. Based on information that was founded, it was used the theory of location, considering the optimization of the location of a firm, and the Industrial Organization, through the S-C-P model, focusing on the structure that allows one to see if there was concentration in the industry. The Metropolitan ant Eastern Center Mesoregions are the ones that slaughter the most, having their own production as their raw material. However, these cattle are still not enough for the demand generated by the consumer market, which live close to these centers. The Southwest Mesoregion slaughters a great number of animals, with 74% of these slaughtered cattle coming from their own production and it is still an important source of animals for other Mesoregions. The number of suppliers (farmers) exceeded 60,000 in 2013, and the slaughter houses had reached 459. There is no concentration in the beef industry, and analyzed concentration measurements show dwindling numbers. The most important slaughterhouse in 2010 lost market by 2013, and smaller slaughterhouses were able to increase their holdings, with a trend towards greater balance between companies.
49

Inferências de condutas em um oligopólio diferenciado : estudos sobre o comportamento do entrante em transporte aéreo no Brasil / Conduct inferences in a differentiated oligopoly : studies on the behavior of the entering firm in Brasilian air transportation

Bettini, Humberto Filipe de Andrade Januario 27 February 2013 (has links)
Orientador: José Maria FerreiraJardim da Silveira / Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Economia / Made available in DSpace on 2018-08-22T19:30:33Z (GMT). No. of bitstreams: 1 Bettini_HumbertoFilipedeAndradeJanuario_D.pdf: 4068438 bytes, checksum: 83f5a7b43126e9389c4775dbdba66788 (MD5) Previous issue date: 2013 / Resumo: Esta Tese debruça-se sobre temas teóricos e empíricos organizados em três frentes, cada qual correspondendo a um Capítulo. A primeira frente apresenta uma revisão de ocorrências do conceito de capacidade produtiva instalada em algumas vertentes de estudos microeconômicos, exprimindo aspectos relativos à sua caracterização técnica e também aspectos "estratégicos", cuja importância competitiva para as firmas que a detém será ressaltada. Na sequência, esta primeira frente conceitua capacidade produtiva no transporte aéreo e apresenta uma tipologia para suas fases decisórias, destacando implicações competitivas pertinentes em relação a temas como reversibilidade de ações e perecibilidade dos bens. Na segunda frente, o tema de investigação são os motivadores concretos por trás de entradas em mercados aéreos no Brasil recente, optando-se pela seleção de um caso. Esta frente também se desdobra em dois esforços: inicia-se por meio de uma revisão da literatura acerca de aspectos variados em Organização Industrial teórica e empírica que se mostram pertinentes à replicação de um exercício de identificação econométrica, tarefa a que se dedica a segunda parte do Capítulo. Assim, o Capítulo 2 realiza o primeiro exercício empírico presente nesta Tese, buscando estabelecer uma leitura das estratégias que cercaram a ação de entrada de uma nova empresa - a Azul Linhas Aéreas - no cenário do transporte aéreo doméstico brasileiro. Na terceira frente, repetem-se o objeto de estudo - trata-se novamente da Azul - e a metodologia empregada, a abordagem econométrica, embora se trate de um foco diferente. Após uma revisão de teorias que destacam aspectos como cognição, rotinas, tempo para reação e a distinção entre estratégias complementares e substitutas, parte-se para a especificação e a estimação do segundo exercício econométrico. Aqui o interesse são as reações em capacidade que foram postas em curso por empresas rivais já estabelecidas atendo-se às principais incumbentes, ou seja, GOL e TAM. Por meio da utilização de um modelo que decompõe a identificação das reações em termos espaciais e temporais, teorias quanto ao uso estratégico da capacidade produtiva e a extensão dos mercados relevantes poderão ser apreciadas à luz das inferências obtidas. Dentre as justificativas mais gerais para o estudo, destacam-se dois aspectos em matéria de regulação econômica: o primeiro se traduz na compreensão das condições capazes de romper com uma situação de extrema concentração de mercado. Ao longo da década de 2000, GOL e TAM paulatinamente alcançaram um patamar de dominância quase absoluta do mercado doméstico em termos agregados, configurando uma estrutura que analistas o público e os meios de comunicação (jornalismos convencional e econômico) rotularam de um "virtual duopólio". Assim, a compreensão acerca da interação estratégica que surge entre uma entrante e as duas principais incumbentes como meio para se manter ou se romper uma determinada configuração de mercado é matéria de grande relevância. Uma segunda justificativa se associa à tentativa empírica de se verificar quão substitutos entre si são os aeroportos de Viracopos, em Campinas, e os paulistanos de Congonhas e Guarulhos. Este tema, no contexto de um país com recursos escassos, déficits históricos em matéria de infra-estrutura e em pleno curso de implementar um processo de concessão de aeroportos - Campinas / Viracopos e São Paulo / Guarulhos inclusos - reveste-se de grande importância. Dentre os achados, corrobora-se a hipótese de que a Azul privilegia adensar operações a partir de aeroportos já integrados em sua rede, e também opta por adicionar ligações que contribuam para a conectividade de passageiros dentro do seu sistema de operações. Ademais, encontraram-se indícios que corroboram a hipótese de haver alguma substituição e alguma complementaridade entre o aeroporto campineiro e os terminais que atendem a Região Metropolitana de São Paulo, resultado que nos ampara na enunciação de recomendações em termos de políticas públicas, e também indícios quanto à diferença nas reações de GOL e TAM, o que sugere diferentes nichos de mercado e/ou diferentes utilizações de afiliadas regionais / Abstract: This Thesis is made of theoretical and empirical themes organized into three fronts, each corresponding to a Chapter. The first front reviews the occurrences of the installed productive capacity concept in some Microeconomics branches, expressing aspects related to its technical character and also strategic aspects whose importance for competition between firms will be then highlighted. In sequence, this first front presents the concepts of productive capacity in air transport and presents a typology for the decision steps and putting special focus on relevant competitive consequences that come in sequence of aspects such action reversibility and good perecibility. In the second front, we investigate the concrete drivers for entries in Brazilian airline markets in current period, by opting for a case study in this task. This front is also divided in two separate efforts. We initiate with a literature review of selected aspects on fields of both theoretical and empirical Industrial Organization studies that are relevant for backing up the econometric exercise that we then develop. Therefore, Chapter 2 ends with the presentation and discussion of the first empirical exercise of this Thesis, aimed at trying to identify the strategies that surrounded market entries by Azul Airlines. In the third front, we repeat the study subject - Azul Airlines - and also the methodology employed - econometrics, but we establish an opposite focus: after another selected literature review devoted to themes such economic cognition, routines, time to react and the distinction between complementary and substitute strategies, we specify and estimate the second econometric exercise of the Thesis. Now the interest lies on capacity reactions that rival airlines (specifically GOL and TAM) carried on in an answer to Azul's market entries. Making use of a model that decomposes reactions in both time and space dimensions, theories regarding the strategic use of productive capacity and the extension of relevant markets are appreciate in the sequence of obtained inferences. Among the most general justifications for the study we carry on, we can highlight some themes in economic regulation: first, the understanding of the conditions behind the breakup of a severe market concentration is something of utmost importance. In the 2000s, GOL and TAM reached such a market concentration degree that analysts, the flying public and means of communication forged the term "virtual duopoly" for designating such structure: together, GOL and TAM had nearly a 90% market share in domestic segment. In such a scenario, to understand the strategic interaction that emerges between an entrant and the two main incumbents as a means for keeping or ruining a determined market structure is a subject of great relevance. A second justification is associated to the empirical effort devoted to identifying how substitutes are the airports of Campinas (Viracopos) and those located in the metropolitan region of São Paulo, namely Congonhas and Guarulhos. This subject is a matter of great importance in a country where there is resource scarcity, historical infrastructure deficits, and an airport concession initiative is on course, in fact including Viracopos and Guarulhos airports. Among main findings, we could see that Azul privileges the strategy of making its network denser by means of adding destinations from airports already present in its network, and also prefers to add new links that can contribute for system-wide passenger connectivity. Moreover, some elements point to the validity of the airport relation (both complementarity and substitutability) between Campinas airport and those serving the metropolitan region of São Paulo, what backs some public policy recommendations and also the notion that the main incumbents - GOL and TAM - seem to belong to different market niches, as they react differently, and/or the hypothesis that regional airlines may have been used in order to compete against the new entrant / Doutorado / Teoria Economica / Doutor em Ciências Econômicas
50

Proč klesá spotřeba instantních potravin? Analýza determinant poptávky / Why Does the Instant Food Consumption Decline? Analysis of Demand Determinants

Pazdera, Martin January 2014 (has links)
There has been a significant decline in instant food market. I investigate the determinants of demand for instant food in this thesis. Oligopoly market structure motivates me to investigate the demand for instant food produced by particular firm. I use yearly and quarterly scanner data for instant food sales on the retail market in Czech Republic in the empirical part of the thesis. The yearly data analysis finds healthy diet trend as a possible cause of instant food market decline. According to quarterly data analysis I find instant food as an inferior good with income elasticity -0,6295. Both these factors can affect stagnant or decreasing revenues of instant food producers. Analysis of demand for instant food produced by particular firm illustrates strong relation between demanded quantity of producer's instant food and prices of his own and competing production. This indicates that price increase is not an optimal strategy in order to stabilize revenues of instant food producer.

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