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Assessment Of Disruption Risk In Supply Chain The Case Of Nigeria’s Oil IndustryAroge, Olatunde O. January 2018 (has links)
evaluate disruption risks in the supply chain of petroleum production. This methodology is developed to formalise and facilitate the systematic integration and implementation of various models; such as analytical hierarchy process (AHP) and partial least squares structural equation model (PLS-SEM) and various statistical tests. The methodology is validated with the case of Nigeria’s oil industry.
The study revealed the need to provide a responsive approach to managing the influence of geopolitical risk factors affecting supply chain in the petroleum production industry. However, the exploration and production risk, and geopolitical risk were identified as concomitant risk factors that impact performance in Nigeria’s oil industry. The research findings show that behavioural-based mechanisms successfully predict the ability of the petroleum industry to manage supply chain risks. The significant implication for this study is that the current theoretical debate on the supply chain risk management creates the understanding of agency theory as a governing mechanism for supply chain risk in the Nigerian oil industry. The systematic approach results provide an insight and objective information for decisions-making in resolving disruption risk to the petroleum supply chain in Nigeria. Furthermore, this study highlights to stakeholders on how to develop supply chain risk management strategies for mitigating and building resilience in the supply chain in the Nigerian oil industry.
The developed systematic method is associated with supply chain risk management and performance measure. The approach facilitates an effective way for the stakeholders to plan according to their risk mitigation strategies. This will consistently help the stakeholders to evaluate supply chain risk and respond to disruptions in supply chain. This capability will allow for efficient management of supply chain and provide the organization with quicker response to customer needs, continuity of supply, lower costs of operations and improve return on investment in the Nigeria oil industry. Therefore, the methodology applied provide a new way for implementing good practice for managing disruption risk in supply chain. Further, the systematic approach provides a simplistic modelling process for disruption risk evaluation for researchers and oil industry professionals. This approach would develop a holistic procedure for monitoring and controlling disruption risk in supply chains practices in Nigeria.
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Regime maintenance in post-Soviet Kazakhstan : the case of the regime and oil industry relationship (1991-2005)Ostrowski, Wojciech January 2008 (has links)
The main aim of this thesis is to investigate the ways in which the authoritarian regime in post-Soviet Kazakhstan maintained itself in power from 1991 until 2005. This study endeavours to uncover the palette of the regime’s methods by analysing the ways in which it went about controlling the oil industry – an industry with which the political and economical future of Kazakhstan is inseparably intertwined. The empirical section of this study investigates the interplay between the regime and the actors located in and around two cores: the National Oil Company and the oil-rich areas. This thesis focuses in particular on instances where players involved with the oil industry, whether directly or indirectly, attempted to challenge the regime’s authority in those two centres either due to greed or grievances. It is argued that these moments of crisis reveal the regime’s maintenance techniques, and can precipitate the deployment of new methods of maintenance in response to them. In order to account for the techniques that the Kazakh ruling regime applied in structuring its relationships with the oil industry, this thesis shifts the emphasis from the prevalent zhuz-horde, tribe, and clan-based approaches to Kazakh politics towards formal (corporatism) and informal (patron-client) mechanisms of control.
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Soviet Oil Politics and the Middle EastAbbas, Ehsan A. R. 12 1900 (has links)
This investigation, covering the past two decades, attempts to determine what benefits the Soviets have sought to gain in their relationships with Middle Eastern oil-producing nations. Chapter I surveys the U.S.S.R.'s oil industry and its tentative prospects for the 1980's. Chapter II discusses Soviet involvement in the Middle East since 1950, including nationalization and oil embargoes. In Chapter III, developments less favorable to the U.S.S.R. are, analyzed: the growing influence of conservative, anti -Soviet oil-producing states and the deradicalization of other Middle Eastern nations. Chapter IV concludes that the Soviets have met with varying success in their Middle Eastern involvements. The future of their oil industry remains uncertain.
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Droits de l’homme, principes éthiques et industrie pétrolièreLuigi, Vincent 02 1900 (has links)
L’influence des multinationales pétrolières dans la société contemporaine est devenue
un élément central de la problématique relative aux droits de l’homme et au
développement durable. Elles sont maintenant très nombreuses à opérer dans le
secteur public et privé avec des stratégies et objectifs particulièrement divers. Grâce à
des budgets conséquents, et une technologie complexe et avant-gardiste, elles sont
responsables de l’exploration, de la production, du raffinage et de la distribution du
pétrole brut. Cela dit, dans le but de pointer du doigt les déséquilibres importants dans
les relations entre l’industrie pétrolière et les pays en développement, la commission
mondiale sur l’environnement et le développement a très tôt mis en avant le terme de
« développement durable », se caractérisant par un « développement qui répond aux
besoins du présent sans compromettre la capacité des générations futures à répondre
aux leurs ». Le secteur pétrolier et gazier est déjà depuis un certain temps un leader en
matière de responsabilité sociale. Les compagnies pétrolières attachent de plus en plus
d’importance à leur impact économique, social et environnemental et elles font aussi de
plus en plus attention à leur image. En plus d’autres éléments, ce phénomène se
démontre par l’extraordinaire augmentation des codes de conduite et par des initiatives
relatives à la responsabilité sociale comme le « global compact » de Kofi Annan. Cela dit,
l’efficacité de ces initiatives est souvent remise en question et il existe un certain
nombre de preuves attestant du fossé existant entre les déclarations de principes et le
véritable comportement des acteurs sur le terrain. Toute la question est donc de savoir
si une conciliation est possible.
Mots- / The influence of Multinational oil corporations in contemporary society is becoming an
increasingly central element of human rights and sustainable development problematic.
There are now many MNOCs operating in both private and public sectors with
remarkably diverse objectives and strategies. Thanks to large budgets and complex
advanced technology, they are responsible for exploration, production, refining and
crude oil distribution. In order to address the imbalance between industrial oil and lessdeveloped
countries, the world commission on environment and development has early
pointed up the term « sustainable development » which is « that meets the needs of the
present without compromising the ability of future generations to meet their own
needs ». As a result, the oil and gas sector has been among the leading industries in
championing Corporate Social Responsibility a while ago. Oil companies attach greater
importance to their economical, social and environmental impact and they also pay
more and more attention to their image. Among other things, this phenomenon is
demonstrated by the extraordinary growth in corporate codes of conduct and CSR
initiatives such as Kofi Annan’s Global Compact. However, the effectiveness of these
initiatives has been regularly questioned and there is a mounting evidence of a gap
between the statements of principles and the real actor’s behaviour on the field. Finally,
is a conciliation possible?
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Monteiro Lobato e o discurso do petróleo: o deslocamento da instituição literária para a arena de debates da política econômicaRamanzini, Isis Cristina 21 June 2017 (has links)
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Previous issue date: 2017-06-21 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / This dissertation aims to investigate, based on an enunciative-discursive perspective,
the action and the political and economic engagement of the writer Monteiro Lobato in
defense of the oil cause in Brazil. His broad and decisive exercise as an intellectual in
the Brazilian sociocultural context is revealed in many publications that were called,
here, oil discourse. With the purpose of contributing to strengthen the relations
between discourse studies and literary studies, three of Lobato’s publications
approaching the oil theme were delimited as the object of study of this dissertation.
Such publications are at the crossroads between general literature and children’s
literature: the preface of A luta pelo petróleo [Flüssiges gold], by Essad Bey, a book
released in Brazil in 1935; O escândalo do petróleo e ferro [The scandal of oil and iron,
published in 1936; and O poço do Visconde [The Viscount’s well], published in 1937,
targeted at children and adolescents. From the theoretical-methodological point-ofview,
some procedures and concepts proposed and developed by Dominique
Maingueneau in many of his works were used in this study – paratopia, interdiscourse,
enunciation scenes, ethos, authorship, discourse and discursive practice –, as well as
some contributions provided by the ergologic approach. The study fostered a new
evaluation of the oil discourse produced by Monteiro Lobato when he moved from the
literary institution to the arena of discussions concerning the economic policy. Monteiro
Lobato’s works studied here reveal a man of multiple activities located in a paradoxical
space, and a spokesperson for a group of renovation and rupture, whose intellectual
legitimacy and influence on the public enabled him to promote his own ideological and
political convictions in a crucial moment of Brazil’s history. These works corroborate
his discourse in defense of the country’s development and financial independence
through oil prospecting / Esta tese tem por objetivo compreender, a partir de uma perspectiva enunciativodiscursiva,
a atuação e o engajamento político e econômico do escritor Monteiro
Lobato em defesa da causa petrolífera no Brasil. Seu amplo e decisivo exercício como
intelectual no contexto sociocultural brasileiro se configura em várias publicações aqui
denominadas discurso do petróleo. Visando também a contribuir para o estreitamento
das relações entre os estudos discursivos e literários, delimitou-se, como objeto de
estudo, três publicações de Lobato referentes à temática do petróleo, que se
encontram no entrecruzamento entre a literatura geral e a literatura infantil: o prefácio
de A luta pelo petróleo, livro de Essad Bey lançado no Brasil em 1935; O escândalo
do petróleo e ferro, publicação datada de 1936; e O poço do Visconde, obra de 1937
destinada ao público infantojuvenil. Do ponto de vista teórico-metodológico, foram
mobilizados alguns procedimentos e conceitos propostos e desenvolvidos por
Dominique Maingueneau em várias de suas obras – paratopia, interdiscurso, cenas
da enunciação, ethos, autoralidade, discurso e prática discursiva –, além de algumas
contribuições da abordagem ergológica. O estudo propiciou uma nova avaliação do
discurso do petróleo produzido por Monteiro Lobato no seu deslocamento da
instituição literária para a arena de debates da política econômica. Revelando um
homem de múltiplas atividades situado num espaço paradoxal e porta-voz de um
grupo de renovação e ruptura, cuja legitimidade intelectual e influência junto ao público
possibilitaram a promoção das suas próprias convicções ideológicas e políticas num
momento crucial da história do Brasil, as referidas obras de Monteiro Lobato vêm
corroborar o seu discurso em defesa do desenvolvimento e da independência
financeira do país mediante a prospecção petrolífera
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Impactos de projetos de engenharia realizados entre 2007 e 2016 de uma empresa do setor de petróleo e gás natural em uma comunidade de pescadores no município de Magé/RJ na perspectiva dos stakeholderesFerreira, Thiago da Silva 14 December 2016 (has links)
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Previous issue date: 2016-12-14 / O presente estudo tem o objetivo de analisar os impactos da implementação por uma empresa de petróleo e gás natural dos empreendimentos GNL (gás natural liquefeito) e GLP (gás liquefeito de petróleo) aos pescadores artesanais de Magé, Estado do Rio de Janeiro no período de 2007 a 2016. Em termos metodológicos, a pesquisa se apoiou na revisão sistemática da literatura adotada tanto para oferecer o devido embasamento teórico sobre licença social para operar e justiça ambiental, quanto para apoiar a construção de instrumentos de coleta de dados aplicados junto a distintos stakeholders. Dentre os resultados destacaram-se: a necessidade de um maior esforço por um diálogo para além dos requisitos legais para licenciamento dos empreendimentos, assim como a busca por uma maior contribuição da academia e poder público na comunicação e esclarecimentos sobre os riscos e impactos locais do empreendimento, e suas respectivas oportunidades, quando existem. / This study aims to analyze the impacts of the implementation from LNG projects (liquefied natural gas) and LPG (liquefied petroleum gas) by an oil company and natural gas to the fisherfolk of Magé, State of Rio de Janeiro in the period 2007-2016. In terms of methodology, the research relied on the systematic review of the literature to both provide theoretical basis of social license to operate and environmental justice, and to support the construction of data collection instruments applied along the different stakeholders. The results highlighted the need for a greater effort for dialog beyond the legal requirements for the licensing of enterprises, as well as the search for a greater contribution of academia and public power in communication on the local risks and impacts, as their opportunities, when it exists.
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Droits de l’homme, principes éthiques et industrie pétrolièreLuigi, Vincent 02 1900 (has links)
L’influence des multinationales pétrolières dans la société contemporaine est devenue
un élément central de la problématique relative aux droits de l’homme et au
développement durable. Elles sont maintenant très nombreuses à opérer dans le
secteur public et privé avec des stratégies et objectifs particulièrement divers. Grâce à
des budgets conséquents, et une technologie complexe et avant-gardiste, elles sont
responsables de l’exploration, de la production, du raffinage et de la distribution du
pétrole brut. Cela dit, dans le but de pointer du doigt les déséquilibres importants dans
les relations entre l’industrie pétrolière et les pays en développement, la commission
mondiale sur l’environnement et le développement a très tôt mis en avant le terme de
« développement durable », se caractérisant par un « développement qui répond aux
besoins du présent sans compromettre la capacité des générations futures à répondre
aux leurs ». Le secteur pétrolier et gazier est déjà depuis un certain temps un leader en
matière de responsabilité sociale. Les compagnies pétrolières attachent de plus en plus
d’importance à leur impact économique, social et environnemental et elles font aussi de
plus en plus attention à leur image. En plus d’autres éléments, ce phénomène se
démontre par l’extraordinaire augmentation des codes de conduite et par des initiatives
relatives à la responsabilité sociale comme le « global compact » de Kofi Annan. Cela dit,
l’efficacité de ces initiatives est souvent remise en question et il existe un certain
nombre de preuves attestant du fossé existant entre les déclarations de principes et le
véritable comportement des acteurs sur le terrain. Toute la question est donc de savoir
si une conciliation est possible.
Mots- / The influence of Multinational oil corporations in contemporary society is becoming an
increasingly central element of human rights and sustainable development problematic.
There are now many MNOCs operating in both private and public sectors with
remarkably diverse objectives and strategies. Thanks to large budgets and complex
advanced technology, they are responsible for exploration, production, refining and
crude oil distribution. In order to address the imbalance between industrial oil and lessdeveloped
countries, the world commission on environment and development has early
pointed up the term « sustainable development » which is « that meets the needs of the
present without compromising the ability of future generations to meet their own
needs ». As a result, the oil and gas sector has been among the leading industries in
championing Corporate Social Responsibility a while ago. Oil companies attach greater
importance to their economical, social and environmental impact and they also pay
more and more attention to their image. Among other things, this phenomenon is
demonstrated by the extraordinary growth in corporate codes of conduct and CSR
initiatives such as Kofi Annan’s Global Compact. However, the effectiveness of these
initiatives has been regularly questioned and there is a mounting evidence of a gap
between the statements of principles and the real actor’s behaviour on the field. Finally,
is a conciliation possible?
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Petroleum in Saudi-American Relations: The Formative Period, 1932-1948Nairab, Mohammad Mahmud 08 1900 (has links)
This dissertation is an examination of the American oil industry in Saudi Arabia and its influence on United States foreign policy. The study examines the Americans who went to Saudi Arabia, the effect of the oil companies on Saudi- American relations, and the American government's response to oil company actions. There is an attempt to answer such questions as: Did the oil companies exert pressure on the American government to influence governmental policy? How effective was this pressure? And, what benefits did the oil companies have from their relationship with the government? The study concludes that Aramco was instrumental in bringing official and nonofficial contact and representation between Saudi Arabia and the United States. Moreover, Aramco was instrumental in involving the American government directly in Saudi Arabia through the extension of lend-lease aid to that country. American government involvement thwarted potential British ambitions in the Saudi oil resources and resulted in the American dominance of oil interests in that kingdom. In addition, Senate investigations showed that the oil companies grossly overcharged the United States Navy on oil purchases and that the financial assistance to Saudi Arabia was made for the protection of Aramco's oil concession.
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Ensaios em finan??as p??blicas municipaisWanderley, Cl??udio Burian January 2009 (has links)
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Previous issue date: 2009 / Funda????o Jo??o Pinheiro / Esta tese busca discutir problemas relacionados ??s finan??as p??blicas municipais
no pa??s. Um aprimoramento de nosso federalismo fiscal, com maior descentraliza????o de recursos e implementa????o de regras de transfer??ncias federativas com maiores incentivos pr??-efici??ncia ??? aumentando os incentivos pr??-obten????o de melhores resultados sociais por parte das unidades subfederadas ??? pode se revelar instrumento importante na melhoria de nossas condi????es sociais. Para isto, dividiu-se esta tese em quatro partes distintas.
No primeiro cap??tulo, discutem-se os impactos das receitas petrol??feras sobre as
finan??as p??blicas municipais. As mudan??as legais ocorridas no pa??s na d??cada de
noventa do ??ltimo s??culo - relativas ao setor petrol??fero - levaram a crescente (e
concentrada) transfer??ncia de recursos do setor para os estados e munic??pios
brasileiros. A forte sensa????o que estes estariam sendo desperdi??ados de alguma
forma vem suscitando discuss??es sobre a necessidade de se reformular sua
distribui????o. As recentes descobertas de megacampos petrol??feros no pr??-sal do litoral
brasileiro somente intensificaram este processo. Buscou-se identificar os efeitos
destas transfer??ncias sobre as vari??veis fiscais municipais no pa??s. Detectou-se que
n??o ocorreu substitui????o tribut??ria, ou seja, estes recursos n??o diminu??ram o esfor??o
arrecadat??rio dos munic??pios. Em compensa????o, tanto os recursos cuja distribui????o ?? bem mais concentrada (referentes aos royalties excedentes) quanto aqueles mais bem-distribu??dos (referentes aos royalties originais) levaram as prefeituras a aumentar seus gastos correntes (piorando sua composi????o do ponto de vista social) e diminuir seus investimentos. O contr??rio parece ocorrer com os recursos cuja distribui????o se d?? de forma intermedi??ria (os royalties referentes ??s participa????es especiais. No segundo cap??tulo, discute-se o impacto das receitas petrol??feras sobre a profici??ncia dos alunos at?? a quarta s??rie prim??ria das escolas p??blicas municipais. As receitas petrol??feras ??? agregadas ou n??o ??? n??o se mostraram estatisticamente significativas na explica????o do desempenho observado pelos alunos da quarta s??rie prim??ria das escolas municipais em portugu??s ou matem??tica. Este resultado, entretanto, deve ser olhado com cautela, uma vez que n??o ?? trivial identificar como (e o tempo necess??rio) estes efeitos seriam gerados. Entretanto, diferentes fontes de receitas municipais impactariam de forma diferenciada as profici??ncias observadas nos testes de portugu??s e matem??tica, explicitando a necessidade de se entender melhor estas diferen??as para se desenhar mecanismo mais eficiente de repasse de recursos constitucionais aos munic??pios. No terceiro cap??tulo, estudam-se os impactos das emancipa????es municipais ocorridas na d??cada de 90 sobre o bem-estar das popula????es locais. Devido ?? Constitui????o Federal de 1988, o n??mero de munic??pios no Brasil multiplicou-se fortemente na d??cada de 90 do ??ltimo s??culo. Mais de mil munic??pios foram criados em todo o pa??s, fazendo seu n??mero ultrapassar a casa dos 5.500. Este processo tem sido interpretado de forma bastante negativa. Baseado em evid??ncias aned??ticas, se pressup??e que os atores pol??ticos locais o utilizaram para se apropriar de maior
parcela dos recursos transferidos de outros n??veis governamentais. Entretanto,
nenhum esfor??o mais sistem??tico foi realizado buscando calcular, de maneira efetiva, os resultados sociais l??quidos deste processo. ?? isto que se busca fazer aqui, utilizando dados sobre os munic??pios mineiros - cujo n??mero passa de 723 em 1991
para 853 em 2000. Foram detectados impactos positivos relacionados a diversas
vari??veis educacionais e de sa??de. Ao mesmo tempo, o contr??rio ocorreu com os
indicadores de pobreza e indig??ncia. Este resultado mostra que o movimento observado de emancipa????o municipal talvez tenha sido bastante ben??fico, sinalizando para a exist??ncia de mercados pol??ticos eficientes nestas localidades, o que indicaria a
necessidade de se manter uma maior autonomia local relativa a processos de emancipa????o de distritos. Por fim, no quarto cap??tulo, analisam-se os impactos de lei (implementada em Minas Gerais) que buscou aumentar os incentivos pr??-efici??ncia das prefeituras
municipais a partir das transfer??ncias federativas. Buscando melhorar as condi????es de vida dos munic??pios mineiros, o governo estadual mineiro instituiu, em 1995, a lei
12.040, conhecida como Lei Robin Hood. Esta permitia que 25% dos recursos de ICMS a serem distribu??dos aos munic??pios mineiros se dessem sobre resultados observ??veis em diversas ??reas tais como sa??de, educa????o, conserva????o ecol??gica, entre outras. Ou seja, esta institu??a, em rela????o a estas transfer??ncias, um contrato de alto poder com os munic??pios relacionados ??s pol??ticas p??blicas implementadas. O estudo destas transfer??ncias (relativas ?? educa????o e sa??de) mostrou resultados d??bios. Resultados positivos relativos ?? educa????o e ?? sa??de parecem ocorrer em todo o estado, mas os incentivos dados poderiam ser bem maiores - faz-se necess??rio um refinamento das regras da partilha destas transfer??ncias. Dada a relativa escassez deste tipo de contrato em transfer??ncias federativas, seja no Brasil, seja no restante do mundo, este resultado aponta a necessidade de utiliza????o de instrumentos de maior poder nas rela????es federativas, buscando incrementar as condi????es de vida locais. / This thesis aims to discuss municipal public finance issues. An improvement of the Brazilian fiscal federalism, with greater resources decentralization and the
implementation of high-powered rules for the federative transfers may be an important
tool in the improvement of our social conditions. To do so, this thesis was divided into four distinct parts. The first chapter discusses the oil revenues impacts on municipalities??? public finance. The legal changes that occurred in Brazil in the nineties in the oil and gas sector led to increasing royalties transfers to Brazilians states and municipalities. The
annedoctical evidence that this transfers are not been used properly - in a way that
would increment the local welfare - have originated a important discussion about these
distribution rules. This paper tries to identify this revenues impacts over others
municipalities??? fiscal variables. It seems that this did not impact the others sources of municipalities revenue. Unhappily, some of the resources (which distribution is either more or less concentrated) led the municipalities to increase their current expenditures and diminishes their investments efforts. At the same time, they are not spending this extra money in a way that would increment the local welfare. On the other hand, the resources which distribution is between these two limits has the opposite effect. The second chapter discusses the impact of oil revenues on the proficiency of fourth grade students of primary public schools. The oil revenues - bundled or not - were not statistically significant in explaining the observed student performance in Portuguese and mathematics. This result, however, must be analyzed with caution, since it is not trivial to identify how (and when) these effects would be generated. However, different sources of municipal revenue would impact differently the students???
proficiency scores, explaining why we need to better understand these differences to
design more efficient constitutional transfer mechanisms to the municipalities.
In the third chapter, we study the impacts of municipal emancipation occurred in
the 90s on the well-being of local populations. More than a thousand of new
municipalities were created at the nineties in Brazil, due the new Federal Constitution
of 1988. There is anecdotic evidence that this was a pretty harmful process for the
Brazilian welfare, but there were no systematic attempt to valuate it properly. This paper tries to do so using data from Minas Gerais municipalities which number has
grown from 723 to 853 ones in that decade. The results suggest that this process
strongly improved the welfare of the local population. This implies that local political
markets are efficient and it should be allowed for any district to emancipate from its former municipalities, if their population wishes to do so. Finally, in the fourth chapter we analyze the impact of law (implemented in Minas Gerais) who sought to increase the incentives pro-efficiency of municipal governments. In order to improve the welfare of its citizens, the state government of Minas Gerais (Brazil) has imposed, at 1995, the state law 12.040, known as Robin Hood law. It stated that 25% of the revenue transferred to the municipalities should be allocated
through observable results achieved in education, health, environment among others.
In other words, this law established a high power contract between the state
government and the municipalities, which is not very usual. This study shows that this
law had a significant impact on the municipalities??? education and health. But it???s necessary to redesign these transfers??? rules, in order to improve its power and its
results. These results shows that the use of high powered rules in federative transfers
could be a strong mechanism in order to improve the population welfare. / Economia e Finan??as
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O problema de roteamento e programação de navios com coleta e entrega na indústria de petróleo : modelagem e métodos de solução exatosFurtado, Maria Gabriela Stevanato 01 April 2016 (has links)
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Previous issue date: 2016-04-01 / Outra / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / The object of this study is the routing and scheduling problem of vessels with pickup
and delivery and time windows in the oil industry. A case study was performed in a Brazilian oil industry that produces crude oil in o shore platforms, that is, located in the ocean, and transports to the terminals located in the Brazilian coast. Then, it was proposed a mixed integer model to represent the problem adequately and for this, a detailed analysis of the real problem in order to know all its characteristics and consider
some simplifying assumptions. Therefore, to the pickup and delivery problem with time windows present in the literature were aggregated other speci c restrictions of the case study, for example, multiple depots, ship mooring restrictions, exible draft and dynamic positioning. Besides that, the eet is heterogeneous related to capacity, LOA (length overall), dynamic positioning and velocity. In practice, in general there are no identical
vessels. This problem can be represented as a combinatorial optimization model, which
belongs to the NP-hard class and its solution is a challenging in practice depending on the size of the real problems. Then, were proposed several exact branch-and-cut methods based on models with 2 and 3-index variables for routing problems with pickup and delivery and time windows to solve speci cally the Brazilian oil industry problem. Finally, we proposed a branch-and-price method, which includes all characteristics of the problem in oil industry. In summary, the main contributions of this thesis are related to the
study and modeling of this problem in practice, and the proposal and development of exact solution methods to solve it, based on branch-and-cut and branch-and-price. The performance of the mathematical model in optimization software and the exact methods were veri ed using a real data set provided by the company. Results show that these approaches may be e ective to solve problems of moderate size in real situations. / O objeto de estudo deste trabalho é o problema de roteamento e programação de navios com coleta e entrega e janelas de tempo na indústria petrolífera. Foi realizado um estudo de caso com uma empresa petrolífera brasileira que produz óleo cru em plataformas o shore, isto é, localizadas no oceano e os transporta até os terminais localizados na costa brasileira. Então, foi proposto um modelo de programação inteira mista para representar o problema adequadamente e para isso, foi necessária uma análise detalhada do problema real, com o intuito de conhecer todas as suas características e considerar hipóteses simpli cadoras. Desta maneira, ao problema de coleta e entrega e janelas de tempo da literatura foram agregadas outras restrições especí cas do problema do estudo de caso como, por exemplo, múltiplos depósitos, restrições de atracação dos navios, calado exível e posicionamento dinâmico. Além disso, a frota de navios é heterogênea em
relação à capacidade, LOA (length overall ), posicionamento dinâmico e velocidade. Na
prática, em geral não existem navios iguais. Este problema pode ser representado como
um modelo de otimização combinatória que pertence à classe NP-difícil e sua solução é
bastante desa adora na prática em função do tamanho dos problemas reais. Depois, foram
propostos vários métodos do tipo branch-and-cut baseados em modelos com variáveis de 2 e 3-índices para problemas de roteamento com coleta e entrega e janelas de tempo para resolver especi camente o problema da empresa brasileira. E por m, foi proposto um método do tipo branch-and-price, o qual abrange todas as características do problema da indústria petrolífera. Em síntese, as principais contribuições desta tese referem-se ao estudo e modelagem deste problema na prática, e a proposta e desenvolvimento de métodos de solução exatos para resolvê-lo, baseados em branch-and-cut e branch-and-price. O desempenho do modelo matemático em softwares de otimização e também dos métodos
exatos propostos foi veri cado usando-se exemplares reais fornecidos pela empresa. Os
resultados mostram que essas abordagens podem ser efetivas para resolver problemas de
tamanho moderado em situações reais.
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