The aim of this thesis is to analyse the impacts of business cycles on individual segments of the automotive industry in the last 23 years in the Czech Republic. The areas analysed are sales and production of cars. Attention is also paid to the downstream industry of parts producers. The theoretical part deals with the theoretical approaches of the business cycle, basic methods of measurement cycles and, furthermore, theories related to the automotive industry. The analysis in the practical part is developed on this theoretical basis. The analytical section is divided in three parts according to three full cycles that went through the analysed time period. What was most apparent was the difference of every cycle. It is from this difference that the different impact of cycle on analysed indicators in each period comes. However, it is evident that the automotive industry is behaving procyclically. Most of the indicators are weakly or moderately cyclical, based on the correlation coefficient.

Submitted by Morgana Silva (morgana_linhares@yahoo.com.br) on 2016-07-01T17:17:42Z No. of bitstreams: 1 arquivototal.pdf: 2571818 bytes, checksum: 5690823d122384dae8cb3b71bce77074 (MD5) / Made available in DSpace on 2016-07-01T17:17:42Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 2571818 bytes, checksum: 5690823d122384dae8cb3b71bce77074 (MD5) Previous issue date: 2014-10-23 / The modern way of life requires a continuous increase in energy use, to the sphere of production or to the consumption, but it has a great impact on the environment due to pollution generated by energy production. Thus, the regulation of the energy sector should consider one trilemma involving low costs, energy security (continuity and independence) and environmental preservation. In this line, this study aims to determine the level of regulatory importance of the principle of environmental protection established in the constitutional chapter of economic order, through the Program of Incentives for Alternative Electricity Energy Sources (PROINFA), for this it was studied most theories of regulation and the economics tools used in the international arena to stimulate alternative energy sources. To facilitate a strategic analysis, game theory has been used to integrate international and domestic relations in regulating the electricity sector. Thus, it was concluded that the Brazilian regulatory model does not prioritize environmental preservation, but it is a good choice to solve the games of energy, stimulating a sustainable energy matrix. / O padrão de vida da sociedade moderna exige um contínuo aumento do uso de energia, seja para a esfera da produção ou do consumo, tendo um grande impacto no meio ambiente devido à poluição gerada pela produção energética. Desta forma, a regulação do setor energético deve ponderar um trilema que envolve o baixo custo da energia, a segurança energética (continuidade e independência) e preservação ambiental. Nesta linha, o presente estudo objetiva averiguar o nível de importância regulatória do princípio da preservação ambiental disposto no capítulo constitucional da ordem econômica, através do Programa de Incentivo às Fontes Alternativas de Energia Elétrica (PROINFA), para isto, foram abordadas as teorias da regulação e as ferramentas econômicas utilizadas no cenário internacional para estimular fontes alternativas de energia. Para facilitar a análise estratégica, foi utilizada a teoria dos jogos para integrar as relações internacionais e do mercado interno na regulação do setor elétrico. Desta forma, concluiu-se que o modelo regulatório brasileiro não prioriza a preservação ambiental, mas é uma boa escolha para resolver os jogos de energia, estimulando uma matriz energética sustentável.

Submitted by Irene Nascimento (irene.kessia@ufpe.br) on 2017-03-16T16:28:54Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) 1_TESE_Fernando Rolim_UFPE_CTG_FINAL ✓.pdf: 11444878 bytes, checksum: 49ba52a66dd0e0151594254313b84808 (MD5) / Made available in DSpace on 2017-03-16T16:28:54Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) 1_TESE_Fernando Rolim_UFPE_CTG_FINAL ✓.pdf: 11444878 bytes, checksum: 49ba52a66dd0e0151594254313b84808 (MD5) Previous issue date: 2015-10-29 / Esta Tese analisa a competitividade de procedimentos licitatórios para a delegação dos serviços de Transporte Público Urbano por Ônibus (TPUO) através do desenvolvimento e aplicação de um original e inédito método de análise baseado na adjunção da Teoria da Regulação Econômica (aqui vista como fenômeno que trata dos mercados nos momentos ex ante e ex post licitações) com a Teoria dos Leilões (aqui vista como processo que trata dos fenômenos que ocorrem durante os próprios procedimentos licitatórios). O método foca na análise tanto das estruturas de mercado ex ante licitações, como nos termos dos editais das licitações, para especular se as licitações tendem a ser competitivas, no sentido de atrair o maior número de empresas entrantes e incumbentes possível às disputas, de estabelecer um ambiente contestável, e de obter contratações mais econômicas. No método desenvolvido é priorizada a adoção de pressupostos baseados em elementos técnicos e econômicos, pois se entende que esses elementos devem limitar a discricionariedade do gestor público, ainda que a legislação eventualmente lhe faculte várias possibilidades para a tomada de decisão. A hipótese da pesquisa, de que em geral as licitações brasileiras para a delegação de serviços de TPUO não têm privilegiado a competitividade, é confirmada pelo teste de hipótese feito, qual seja, a aplicação do método de análise nos editais das Concorrências 02/2013 e 03/2013 do Grande Recife Consórcio de Transportes (CTM) para a delegação de serviços de TPUO na Região Metropolitana do Recife (RMR). Diante dos achados da pesquisa, resta especular que a explicação para a realidade constatada não está na análise econômica. Nesse sentido, a Tese pode fechar um ciclo de pesquisas conduzidas pela academia nacional nas últimas duas décadas, que tem tentado buscar respostas para explicar o porque de não haver competitividade em licitações para delegação de serviços de TPUO no Brasil. As respostas provavelmente não se encontram no campo da Economia, a despeito de a Tese mostrar que a competitividade, segundo a Teoria da Regulação Econômica e a Teoria dos Leilões, não vir sendo atingida nas licitações brasileiras. Resta agora explorar outros caminhos e searas, que enfoquem e estudem as relações sociais e outras disciplinas que eventualmente possam desvendar o que efetivamente está subjacente à falta de competitividade, para entender e diagnosticar, na prática, as forças que impedem a inserção de adequados níveis de competitividade nos mercados de TPUO brasileiros. / This thesis analyzes the competitiveness of competitive tendering (CT) procedures aimed at the delegation of the Urban Bus Public Transport (TPUO) services through the development and application of a method of analysis based on the addition of the Theory of Economic Regulation (seen here as a phenomenon that deals with the markets ex ante and ex post competitive tendering processes) with the Auction Theory (seen here as a process that deals with the phenomena that occur during the competitive tendering procedures). The method focuses on the analysis of both the ex ante CT market structures and the terms of the notices to tender, in order to speculate whether the bids tend to be competitive from the perspective of attracting as many entrant and incumbent firms as possible, of establishing a contestable environment, and of fostering more economic contracts. In the method developed it is prioritized the adoption of assumptions based on technical and economic aspects, since it is considered that these aspects should limit the discretion of the public authority, even when the legislation allows different choices for the decision maker. The hypothesis of the research, that in general the Brazilian CT procedures for the delegation of the TPUO services have not privileged competitiveness, is confirmed by the test of hypothesis done, that means, the application of the method upon the notices to tender 02/2013 03/2013 of the Greater Recife Transport Consortium (CTM) for the delegation of TPUO services in the Metropolitan Region of Recife (RMR). Before the research findings, it may be speculated that the explanation for the reality observed can not be found in the economic analysis. In this sense, the Thesis may close a research effort conducted by Brazilian scholars throughout the last two decades, who have been trying to find answers to explain the reason for the lack of competitiveness in the CT procedures for de delegation of the TPUO services in Brazil. Probably answers may not be found in the Economy field, even though the Thesis has shown that competitiveness, according to the Theory of Economic Regulation and the Auction Theory, has not been achieved in the Brazilian case. Thus, it would be appropriate to explore other fields that focus and study social relations and other disciplines which might uncover what is actually behind the lack of competitiveness, to understand and diagnose, in practice, the forces that prevent the insertion of appropriate levels of competitiveness in the Brazilian TPUO markets.

The victory of the Conservatives in the 1979 General Election brought a government into office which is traditionally said to pursue a programme of economic liberalism. The new government was determined to end British economic decline and the crisis of state authority by making an ideological and political break with the policy of consensus. But it was only after September 1981, when "the dries" achieved dominance in Conservative Government and the new liberal policy finally prevailed. Their goals were to reduce the role of the government in economy, to start privatization of nationalised industries and to achieve reduction in the size and scope of welfare state. This objective became an important part of Thatcher's second- and third-term economic policy. This thesis describes how the particular factors influenced the privatization programmes. The main aim is to answer the question whether the delays in privatization programmes were given by objective obstruction by Thatcher's political opponents and interest groups or whether "the dries" themselves did not support denationalization of strategic industries. The privatization is examined and brought into context of fiscal and monetary policy to unveil the role of privatization in Thatcher's economic policy. The success of privatization is limited by regulations imposed on denationalized industries and the author of this thesis puts emphasis on the description of the extent to which the members of the conservative party supported free market. The author uses a description of various privatization programmes, including related political and economical discussions, to answer these questions. The thesis includes a description of popular capitalism and a connection between foreign policy and privatization as well as the author's evaluation of privatization program.

Esta tese objetiva explicar a persistência e o fim da inflação no Brasil a partir de um enfoque institucionalista. Mais especificamente, faz uma análise dos Planos Cruzado e Real com base nos referenciais teóricos da Teoria da Regulação, do antigo institucionalismo de Veblen e da Nova Economia Institucional (NEI), com especial atenção à visão de Douglass North. A partir do referencial teórico da Teoria da Regulação, observa-se a contribuição das formas institucionais de estrutura nos anos 1980 e 1990 para a persistência e o fim da inflação. Do ponto de vista do institucionalismo vebleniano, observa-se que as formas institucionais de estrutura, na década de 1980, contribuíram para consolidar o que se denominou de hábito inflacionário, presente no Brasil ao longo de sua história, mas que ganhou maior relevância na segunda metade dessa década e início dos anos 1990. Frente a esse hábito, formado a partir de um ambiente de seleção e adaptação que ganha relevância mais significativa quando a incerteza aumenta, explicamos o resultado do Plano Cruzado, incapaz de eliminar o hábito compartilhado de reajustar preços. Fez-se necessária a adoção de uma série de transformações (formas institucionais) para a eliminação do hábito inflacionário e o sucesso do Plano Real, que continuaria a processar significativas transformações na economia nacional. Do ponto de vista da Nova Economia Institucional, trabalhamos o conceito de moeda como uma instituição fundamental nas economias de mercado. Nesse contexto, a configuração das formas institucionais e a formação do hábito inflacionário transformaram a moeda nacional em uma instituição ineficiente (que não cumpria adequadamente suas funções) que não desapareceu porque foram criados os mecanismos de indexação como complementares às suas funções. No esquema de mudança institucional de Douglass North, fica claro que o Plano Cruzado fracassou porque não foi capaz de alterar as crenças dos agentes, fruto de anos de convivência com uma economia inflacionária. Por outro lado, o Plano Real teve êxito porque, além de ter sido elaborado em um novo contexto de formas institucionais e de eliminação do hábito inflacionário, alterou a crença dos agentes em relação à moeda nacional em um momento em que a própria convivência com a inflação havia se tornado difícil. / This thesis aims at explaining the persistence and the end of inflation in Brazil from an institutionalist approach. More specifically, analyses the Cruzado and Real Plans based on the theoretical framework of the Theory of Regulation, Veblen‘s old institutionalism and the New Institutional Economics (NIE), with special attention to the vision of Douglass North. From the Theory of Regulation theoretical framework we observed the contribution of institutional forms of structure in the years 1980 and 1990 for the persistence and end of inflation. From the Veblenian institutionalism point of view, it is observed that the institutional forms of structure, in the 1980s, helped consolidate what was called inflationary habit. This is present in Brazil throughout its history but gained greater prominence in the second half of this decade and early 1990s. Facing this habit, formed from an environment of selection and adaptation that gains a more significant relevance when the uncertainty increases, we explain the result of the Cruzado Plan which was unable to eliminate the shared habit of readjusting prices. It was necessary to adopt a series of transformations (institutional forms) to eliminate the inflationary habit and to enable the success of the Real Plan, which would continue to handle significant changes in the national economy. From the perspective of the New Institutional Economics, we worked with the concept of money as a fundamental institution in market economies. In this context, the configuration of institutional forms and the formation of inflationary habit transformed the national currency in an inefficient institution (that did not fulfilled its functions properly) which did not disappeared because indexation mechanisms were created as complementary to its functions. In Douglass North scheme of institutional change, it is clear that the Cruzado Plan failed because it was not able to change the agents‘ beliefs, a result of years of living with an inflationary economy. On the other hand, the Real Plan was successful because, besides having been prepared in a new context of institutional forms and elimination of inflationary habit, changed the agents belief towards the national currency at a time when the coexistence with inflation itself had become difficult.

L'objectif de ce travail est d'analyser l'impact de l'intégration européenne sur les systèmes nationaux de politiques fiscales. La concurrence fiscale internationale, inhérente à l'internationalisation croissante des économies, induit une course au moins disant fiscal. Ce type de stratégies, que nous nommons « darwinisme institutionnel », pose la question de la convergence des systèmes fiscaux vers un modèle unique non satisfaisant pour chaque économie. C'est encore plus vrai à l'échelle de l'Union européenne : alors que les effets externes de l'intégration poussent, en théorie, à l'harmonisation, nous constatons une absence de convergence depuis 2001. En l'absence de théories de la concurrence fiscale aptes à rendre compte de la nature complexe de l'ensemble des phénomènes fiscaux en Europe, et afin de mieux prendre en compte les ressorts dynamiques de la fiscalité, notre travail propose une grille de lecture de l'hétérogénéité fiscale européenne. Notre étude élabore une typologie des différents « modèles » fiscaux et institutionnels existants, évalués à six : continental développé, scandinave, libéral, continental en développement, micro-insulaire et oriental en transition. Sur la base de cette typologie, nous établissons des correspondances, pour chacun des États européens, entre leur modèle d'économie de marché et le type de structure fiscale. De plus, nos résultats mettent en avant que l'appartenance à un de ces modèles n'explique pas les différences de performances financières. Enfin, leur analyse en dynamique (1995-2007) nous conduit à caractériser les évolutions de ces différents modèles comme un phénomène de polymorphisme fiscal européen, où leur hétérogénéité n'a eu de cesse de s'accentuer sur la période considérée. Par conséquent, pour que chaque État-membre puisse suivre sa trajectoire institutionnelle tout en minimisant les effets externes résultant de stratégies nationales non-coopératives, il apparaît que le renforcement d'une coordination européenne des politiques fiscales est nécessaire au niveau des clubs de convergence définis à l'échelle des modèles fiscaux identifiés. / This thesis analyzes the impact of European integration on national tax policies. The international tax competition, inherent to the growing internationalization of economies, induces a tax race to the bottom. Such strategies, which we call “institutional Darwinism”, raise the question of the convergence of tax systems into an unsatisfactory single model for each economy. This is especially true across the EU: while the external effects of integration lead, in theory, to harmonization, we can see a lack of convergence since 2001. In the absence of tax competition theories able to report the complex nature of all tax phenomenon in Europe, and to be able to better take into account the dynamic spring of taxation, our work offers an interpretative framework of the European tax heterogeneity. Our study develops a typology of six tax “models” and institutional frameworks: Developed Continental, Scandinavian, liberal, developing continental, micro-insular and Oriental in transition. On the basis of this typology, we establish correspondences for each of all the European states, between their market economy model and their type of tax structure. Furthermore, our results highlight that, to belong to one of those models, does not explain the difference in their financial performance. Finally, they dynamic analysis (1995-2007) leads us to characterize the evolution of those models as European tax polymorphism, where their heterogeneity has continued to grow over the considered period. Therefore, if each member state wants to follow its institutional trajectory while minimizing external effects resulting from national non-cooperative strategies, it appears that the reinforcement of the European coordination of tax policies appears to be needed at the convergence club level, which is defined scale of the identified tax “models”.

Esta tese objetiva explicar a persistência e o fim da inflação no Brasil a partir de um enfoque institucionalista. Mais especificamente, faz uma análise dos Planos Cruzado e Real com base nos referenciais teóricos da Teoria da Regulação, do antigo institucionalismo de Veblen e da Nova Economia Institucional (NEI), com especial atenção à visão de Douglass North. A partir do referencial teórico da Teoria da Regulação, observa-se a contribuição das formas institucionais de estrutura nos anos 1980 e 1990 para a persistência e o fim da inflação. Do ponto de vista do institucionalismo vebleniano, observa-se que as formas institucionais de estrutura, na década de 1980, contribuíram para consolidar o que se denominou de hábito inflacionário, presente no Brasil ao longo de sua história, mas que ganhou maior relevância na segunda metade dessa década e início dos anos 1990. Frente a esse hábito, formado a partir de um ambiente de seleção e adaptação que ganha relevância mais significativa quando a incerteza aumenta, explicamos o resultado do Plano Cruzado, incapaz de eliminar o hábito compartilhado de reajustar preços. Fez-se necessária a adoção de uma série de transformações (formas institucionais) para a eliminação do hábito inflacionário e o sucesso do Plano Real, que continuaria a processar significativas transformações na economia nacional. Do ponto de vista da Nova Economia Institucional, trabalhamos o conceito de moeda como uma instituição fundamental nas economias de mercado. Nesse contexto, a configuração das formas institucionais e a formação do hábito inflacionário transformaram a moeda nacional em uma instituição ineficiente (que não cumpria adequadamente suas funções) que não desapareceu porque foram criados os mecanismos de indexação como complementares às suas funções. No esquema de mudança institucional de Douglass North, fica claro que o Plano Cruzado fracassou porque não foi capaz de alterar as crenças dos agentes, fruto de anos de convivência com uma economia inflacionária. Por outro lado, o Plano Real teve êxito porque, além de ter sido elaborado em um novo contexto de formas institucionais e de eliminação do hábito inflacionário, alterou a crença dos agentes em relação à moeda nacional em um momento em que a própria convivência com a inflação havia se tornado difícil. / This thesis aims at explaining the persistence and the end of inflation in Brazil from an institutionalist approach. More specifically, analyses the Cruzado and Real Plans based on the theoretical framework of the Theory of Regulation, Veblen‘s old institutionalism and the New Institutional Economics (NIE), with special attention to the vision of Douglass North. From the Theory of Regulation theoretical framework we observed the contribution of institutional forms of structure in the years 1980 and 1990 for the persistence and end of inflation. From the Veblenian institutionalism point of view, it is observed that the institutional forms of structure, in the 1980s, helped consolidate what was called inflationary habit. This is present in Brazil throughout its history but gained greater prominence in the second half of this decade and early 1990s. Facing this habit, formed from an environment of selection and adaptation that gains a more significant relevance when the uncertainty increases, we explain the result of the Cruzado Plan which was unable to eliminate the shared habit of readjusting prices. It was necessary to adopt a series of transformations (institutional forms) to eliminate the inflationary habit and to enable the success of the Real Plan, which would continue to handle significant changes in the national economy. From the perspective of the New Institutional Economics, we worked with the concept of money as a fundamental institution in market economies. In this context, the configuration of institutional forms and the formation of inflationary habit transformed the national currency in an inefficient institution (that did not fulfilled its functions properly) which did not disappeared because indexation mechanisms were created as complementary to its functions. In Douglass North scheme of institutional change, it is clear that the Cruzado Plan failed because it was not able to change the agents‘ beliefs, a result of years of living with an inflationary economy. On the other hand, the Real Plan was successful because, besides having been prepared in a new context of institutional forms and elimination of inflationary habit, changed the agents belief towards the national currency at a time when the coexistence with inflation itself had become difficult.

Esta tese objetiva explicar a persistência e o fim da inflação no Brasil a partir de um enfoque institucionalista. Mais especificamente, faz uma análise dos Planos Cruzado e Real com base nos referenciais teóricos da Teoria da Regulação, do antigo institucionalismo de Veblen e da Nova Economia Institucional (NEI), com especial atenção à visão de Douglass North. A partir do referencial teórico da Teoria da Regulação, observa-se a contribuição das formas institucionais de estrutura nos anos 1980 e 1990 para a persistência e o fim da inflação. Do ponto de vista do institucionalismo vebleniano, observa-se que as formas institucionais de estrutura, na década de 1980, contribuíram para consolidar o que se denominou de hábito inflacionário, presente no Brasil ao longo de sua história, mas que ganhou maior relevância na segunda metade dessa década e início dos anos 1990. Frente a esse hábito, formado a partir de um ambiente de seleção e adaptação que ganha relevância mais significativa quando a incerteza aumenta, explicamos o resultado do Plano Cruzado, incapaz de eliminar o hábito compartilhado de reajustar preços. Fez-se necessária a adoção de uma série de transformações (formas institucionais) para a eliminação do hábito inflacionário e o sucesso do Plano Real, que continuaria a processar significativas transformações na economia nacional. Do ponto de vista da Nova Economia Institucional, trabalhamos o conceito de moeda como uma instituição fundamental nas economias de mercado. Nesse contexto, a configuração das formas institucionais e a formação do hábito inflacionário transformaram a moeda nacional em uma instituição ineficiente (que não cumpria adequadamente suas funções) que não desapareceu porque foram criados os mecanismos de indexação como complementares às suas funções. No esquema de mudança institucional de Douglass North, fica claro que o Plano Cruzado fracassou porque não foi capaz de alterar as crenças dos agentes, fruto de anos de convivência com uma economia inflacionária. Por outro lado, o Plano Real teve êxito porque, além de ter sido elaborado em um novo contexto de formas institucionais e de eliminação do hábito inflacionário, alterou a crença dos agentes em relação à moeda nacional em um momento em que a própria convivência com a inflação havia se tornado difícil. / This thesis aims at explaining the persistence and the end of inflation in Brazil from an institutionalist approach. More specifically, analyses the Cruzado and Real Plans based on the theoretical framework of the Theory of Regulation, Veblen‘s old institutionalism and the New Institutional Economics (NIE), with special attention to the vision of Douglass North. From the Theory of Regulation theoretical framework we observed the contribution of institutional forms of structure in the years 1980 and 1990 for the persistence and end of inflation. From the Veblenian institutionalism point of view, it is observed that the institutional forms of structure, in the 1980s, helped consolidate what was called inflationary habit. This is present in Brazil throughout its history but gained greater prominence in the second half of this decade and early 1990s. Facing this habit, formed from an environment of selection and adaptation that gains a more significant relevance when the uncertainty increases, we explain the result of the Cruzado Plan which was unable to eliminate the shared habit of readjusting prices. It was necessary to adopt a series of transformations (institutional forms) to eliminate the inflationary habit and to enable the success of the Real Plan, which would continue to handle significant changes in the national economy. From the perspective of the New Institutional Economics, we worked with the concept of money as a fundamental institution in market economies. In this context, the configuration of institutional forms and the formation of inflationary habit transformed the national currency in an inefficient institution (that did not fulfilled its functions properly) which did not disappeared because indexation mechanisms were created as complementary to its functions. In Douglass North scheme of institutional change, it is clear that the Cruzado Plan failed because it was not able to change the agents‘ beliefs, a result of years of living with an inflationary economy. On the other hand, the Real Plan was successful because, besides having been prepared in a new context of institutional forms and elimination of inflationary habit, changed the agents belief towards the national currency at a time when the coexistence with inflation itself had become difficult.

The core focus of this thesis is the principal-agent problem and its role in the outbreak of the 2007 financial crisis. Analysis of key elements of the problem like moral hazard and adverse selection lays foundations for identifying situations, in which conflict of interests led to negative impacts on the economic performance before and during the financial crisis. This work also studies the influence of factors that are often overlooked by theoretical economists but are still tightly connected to the principal-agent problem, like exogenous incentives based on the mechanism of trust. The author also evaluates mechanisms that have been put into place after the financial crisis and which could help lower agency costs. He also sketches out possible venues of future research in this area.

O setor elétrico brasileiro é composto, majoritariamente, por usinas hidrelétricas, cuja operação é realizada de forma centralizada pelo Operador Nacional do Sistema (ONS). Devido às características do setor, foi criado durante a década de 1990 o Mecanismo de Realocação de Energia (MRE) com o intuito de compartilhar o risco hidrológico entre as usinas participantes deste mecanismo, o qual é medido pelo Generation Scaling Factor (GSF). Entre os anos de 2014 e 2015, o Brasil enfrentou um período de escassez hídrica que impactou negativamente o caixa dos geradores hídricos. Estes, insatisfeitos com o cenário, articularam-se junto à Agência Nacional de Energia Elétrica (ANEEL) e ao Ministério de Minas e Energia (MME) para que o risco hidrológico fosse transferido para os consumidores. A agência reguladora posicionou-se contrária ao pleito dos geradores na primeira fase da Audiência Pública 32/2015, que tratou do tema em questão, entretanto o governo editou a Medida Provisória 688/2015 que possibilitou a repactuação do risco hidrológico mediante um pagamento de prêmio de risco pelos geradores hídricos. Neste contexto, esta dissertação foi desenvolvida com o objetivo principal de avaliar o processo de repactuação do risco hidrológico, a partir dos estudos sobre a evolução da Teoria da Regulação, com foco na atuação dos grupos de interesse. Os resultados indicam possibilidade em aplicar os pressupostos da Teoria dos Grupos de Interesse, principalmente a abordagem de Pelztman (1976), no processo de repactuação do risco hidrológico, demonstrando que: (i) a regulação surge como demanda dos grupos de interesse; (ii) a regulação tende a beneficiar os grupos de interesse que forem mais ativos politicamente; (iii) os agentes envolvidos no processo de regulação atuam para maximizar sua própria utilidade; e (iv) a regulação tende a beneficiar grupos de interesse cujo benefício per capita seja maior. / The Brazilian Power sector consists of hydroelectric plants, whose operation is performed centrally by the mainly National System Operator. Due to the system characteristics, during the 1990s, was created the Energy Reallocation Mechanism in order to share hydrological risk among mechanism\'s participating, which is measured by the Generation Scaling Factor (GSF). Between 2014 and 2015, Brazil faced a water scarcity period that negatively affected the hydropower generators revenue. The generators unsatisfied with this situation have started seek to influence the electricity regulatory agency and the Ministry of Mines and Energy in order to transferred the hydrologic risk to consumers. The regulatory agency has positioned itself against the claim of the generators in the first phase of the Public Hearing 32/2015, but the government has published Interim Measure 688/2015 which allowed the renegotiation of the hydrological risk through a premium risk payment by hydropower generators. In this context, this work was developed with the main objective of analysing the renegotiation process of hydrological risk, such analysis was based on the evolution of regulation theory studies, focusing on the role of interest groups. The results indicate the possibility of applying the assumptions of Theory of Economics Regulation, mainly the Pelztman (1976) approach, on the renegotiation of the hydrological risk process demonstrating that: (i) regulation is supplied in reponse to the interest groups demand for regulation; (ii) regulation is most likely to benefit the interest groups that are more active politically; (iii) agents involved in the regulatory process act to maximize their own utility; and (iv) regulation trends to benefit interest groups which highest per capita benefit.