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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.
221

O mercado de concessão de transmissão de energia elétrica no Brasil / The concession market of electricity transmission lines in Brazil

Heitor Hiroaki Hirota 04 August 2006 (has links)
O objetivo deste trabalho foi analisar o mercado de concessões de prestação do serviço de transmissão de energia elétrica do Brasil. Essa concessão dura trinta anos e, se for considerado que houve muitos interessados em ganhar as concessões, para a maioria dos leilões realizados até 2005 o resultado dos leilões podem ser considerados um grande sucesso. Esses leilões são recentes, se iniciaram em 1999. Antes disso o setor passava por dificuldades de investimento. Após reformulação de algumas leis, o setor elétrico deixou de ser dependente de financiamentos governamentais. O setor privado começou a investir de forma controlada nesses projetos de grande porte e a obrigação do governo passou a ser o de fiscalizar e formular as leis do setor. Como houve muitos interessados em prestar o serviço público, os leilões foram a forma escolhida para decidir qual era a empresa mais eficiente. Os leilões são descendentes de primeiro preço em dois estágios em que o primeiro estágio é secreto em envelope fechado. Caso a diferença entre o menor valor e os outros lances seja menor do que 5%, o leilão passa para o segundo estágio que ocorre em viva-voz. Como o objeto leiloado é uma concessão, o valor que os participantes tem de decidir não é o preço a pagar, mas sim o valor da receita máxima que a concessionária aceitará receber para prestar o serviço. Uma das características da transmissão que determinou o tipo de regulação a ser utilizado foi o fato da transmissão de energia elétrica ser um monopólio natural, por isso o valor cobrado dos usuários deve ser controlado. O valor desse único lance contém as expectativas dos agentes sobre o valor dos custos estimados para prestar o serviço, contém também as expectativas de lucro possível, da probabilidade de vitória do leilão dada a concorrência etc. A análise deste trabalho se concentra nos leilões realizados no período de 1999 até 2005 em que ocorreram dez leilões com várias linhas sendo leiloadas em cada leilão. Para determinar o que tornou esse mercado tão interessante para as empresas privadas, foram consideradas as características de cada empresa. A característica mais importante é a interdependência. Essa interdependência permite custos menores quanto mais projetos de transmissão a empresa possui, por isso os resultados do leilão podem ser determinados por essa característica especial. Além dessa variável, foram consideradas a concorrência, a competitividade entre os participantes, o tipo de empresa, ou seja, em que setor a empresa possui especialidade na realização de projetos e o fato dos leilões serem seqüenciais. / This work analised the concession market of electricity transmission lines in Brazil. This market was recently created by a major restructuring in the regulation laws. The reason for this change was the investment crisis that the sector was going through before 1999. Those concessions are decided by an auction and lasts for thirty years. It has been considered a major success, due to the interest of many companies in acquiring this permits. The government no longer invested on it but instead decided de the laws to control the sector. One of the key changes in the diferent aspect of the regulation the participation of the private sector. Investments were no longer dependent on government for financial suport. This alteration made the market more competitive, eficient and lucrative. The auctions are classified as a descending first-price with two stages. The first stage is made with a sealed bid and in case the diference of the lowest bid and the other bids are less than 5%, the auction goes to the second stage with a oral auction. The object auctioned is a permit to provide a public service for a period o time, so this is the reason the auction is descending one. The bids made by the participants is the value of a maximum annual income permited by the regulator. The reason for this maximum is a result of the fact that this public service is a natural monopoly. It prevents the concessionare to take advantage over it´s clients by charging a high fee when they don´t have a choice of another provider of this service. When the participants of the auctions choose the value of the bid, this only bid contains all of their expectations of costs, profits, the probability of winning the auction when considering the competition etc. This work uses the data of all the auctions of transmission lines that happened between 1999 and 2005. in this period ocorred ten auctions, with many lines auctioned in each one. In order to determine what made this market so interesting for private companies some caracteristics of those companies were considered. The results of this study finds that the most important caracteristic is interdependencies. It allows lower costs the many concessions the company owns. This result is so powerful that sometimes it may determine the winner of the auction. Other variables analised were the competitiveness of this sequential auctions, the competitiveness of the participants, the kind of work the company is specialized in, as a real option when deciding what kind of company to participate, for exemple, in a joint venture, and the benefits of this decision.
222

Gerenciamento de propostas em empresas de engenharia: uma análise sob a perspectiva do potencial de se conquistar projetos

Costa Neto, Ricardo Luiz Ferreira da 29 October 2012 (has links)
Submitted by Marcia Silva (marcia@latec.uff.br) on 2016-01-29T16:48:44Z No. of bitstreams: 1 Dissert Ricardo Luiz Ferreira da Costa Neto.pdf: 1120222 bytes, checksum: fb10f112e2ff93dd963bc51c88513b6c (MD5) / Made available in DSpace on 2016-01-29T16:48:44Z (GMT). No. of bitstreams: 1 Dissert Ricardo Luiz Ferreira da Costa Neto.pdf: 1120222 bytes, checksum: fb10f112e2ff93dd963bc51c88513b6c (MD5) Previous issue date: 2012-10-29 / A sistematização de processos de Engenharia e o Gerenciamento de Propostas (Bid Management) se desenvolveu muito ao longo da década de 2000, e várias abordagens sobre modelos de aplicação destas atividades existem atualmente. Entretanto, em função do caráter particular de gerenciamento de cada Empresa de Engenharia e como elas são estruturadas, fica sempre a dúvida de como e onde aplicar tais modelos e aproveitar os resultados vitoriosos de projetos passados. Neste contexto, a presente investigação acadêmica engloba a temática sobre a necessidade do Gerenciamento de Propostas, averigua a necessidade de existirem equipes dedicadas somente a ela, e propõe quais modelos de estruturação organizacional dessas equipes são mais adequados a maximização da conquista de projetos. / The systemization of Engineering processes and the Bid Management evolved during the 2000’s decade and several approaches regarding utilization models of those activities actually exist. However, due to the particularities of each Engineering Company and how they are organized, there will always be the doubt of how and where to use those models and take advantage of successful outcomes of past projects. In this context, the present academic investigation covers the thematic regarding the necessity of the Bid Management, investigates the necessity of having dedicated teams only to it and proposes which models of organizational structures are adequate for the maximization of projects acquisition
223

Computer Science Optimization Of Reverse auction : Reverse Auction / E-Auction : Electronic Auction

Mubark, Athmar January 2017 (has links)
Many people still confused and misunderstand the differences between auction types: In fact, we have only two major types of auctions which are the forward auction and Reverse auction[22]. In a forward auction a single seller offers an item for sale with many competitive buyers driving the price upward: In a Reverse Auction, a single buyer wants to purchase a service or an item from many sellers, they drive the price downward: There are many differences between these type of auction: Including the progress of the auctions; winner selection criterion and other factors: The Reverse Auction nowadays is one of the most preferred types of online auctions: It gains popularity rapidly because of representing the buyers' side and helps him to drive prices down in contrary with the forward auction or traditional auction. The aim of this study is to identify the most common types of the Reverse auctions and compare them to one another to determine when should be used by a buyer and propose the most efficient implementation model for some types: The results of this study are: achieve a written report and a small demonstrator model on how to implement English Auction and Second-Sealed bid Auction.
224

Protiplnění při povinné nabídce převzetí a vypořádávání při nedobrovolném snížení podílu akcionáře / Valuable Consideration in Takeover Bid and Settlement by Unwilling Reducing of Shareholder’s Share

Koranda, Vladimír January 2009 (has links)
This work deals with valuable consideration when changes of ownership of equity securities occur in connection with corporate changes in joint-stock company, especially with unwilling changes -- rise of registered capital with excluding the priority subscription right (§ 204a/5 of the Commercial Code), unwilling transfer of shares on the major shareholder (§ 354 of the "Act on the changes of commercial companies and associations") and squeeze out (§ 183i of the Commercial Code). Valuable consideration defines relatively in detail the Takeover Bid Act. This framework could be to certain extent analogically used for valuable consideration in unwilling transaction. However, its definition itself offers a considerable room for interpretation, so is also seized as the independent secondary topic (chapter 1). The main topic concerns two basic aspects. The first is a company evaluation. In this aspect we will take a look only at the dependence of the expert providing the evaluation on major shareholder (chapter 5). Work aims at the second problematic aspect of unwilling transaction - a premium over the valuable consideration for the infringement of right (chapter 2, especially section 2.4.). The work also deals with unevaluated risks of minority shareholders in the period beginning the day to which the company was evaluated to time of the pay out of ownership (chapter 4).
225

Internetová aukce a její právní aspekty / Internet Auction and it's Legal Aspects

Ehrenbergerová, Lucia January 2009 (has links)
The aim of this thesis is to give a comprehensive overview about the internet auctions from several different perspectives, but mainly form the law-related perspective. The relation of the internet auctions to other branches of law is examined -- especially to the consumer protection or the questions of counterfeit goods. Part of this thesis is devoted to pay-per-bid auctions and their place in legal regulations in Czech Republic. The German regulations are also introduced a compared to the Czech ones. In the end there is an introduction to some interests from the auction world.
226

Financial models and price formation : applications to sport betting / Modèles financiers et formation des prix : applications aux paris sportifs

Jottreau, Benoît 30 November 2009 (has links)
Cette thèse est composée de quatre chapitres. Le premier chapitre traite de l'évaluation de produits financiers dans un modèle comportant un saut pour l'actif risque. Ce saut représente la faillite de l'entreprise correspondante. On étudie alors l'évaluation des prix d'options par indifférence d'utilité dans un cadre d'utilité exponentielle. Par des techniques de programmation dynamique on montre que le prix d'un Bond est solution d'une équation différentielle et le prix d'options dépendantes de l'actif est solution d'une équation aux dérives partielles d'Hamilton-Jacobi-Bellman. Le saut dans la dynamique de l'actif risque induit des différences avec le modèle de Merton que nous tentons de quantifier. Le second chapitre traite d'un marché comportant des sauts : les paris sur le football. Nous rappelons les différentes familles de modèles pour un match de football et introduisons un modèle complet permettant d'évaluer les prix des différents produits apparus sur ce marché ces dix dernières années. La complexité de ce modèle nous amène à étudier un modèle simplifié dont nous étudions les implications et calculons les prix obtenus que l'on compare à la réalité. On remarque que la calibration implicite obtenue génère de très bons résultats en produisant des prix très proches de la réalité. Le troisième chapitre développe le problème de fixation des prix par un teneur de marche monopolistique dans le marché des paris binaires. Ce travail est un prolongement direct au problème introduit par Levitt [Lev04]. Nous généralisons en effet son travail aux cas des paris européens et proposons une méthode pour estimer la méthode de cotation utilisée par le book-maker. Nous montrons que deux hypothèses inextricables peuvent expliquer cette fixation des prix. D'une part, l'incertitude du public sur la vraie valeur ainsi que le caractère extrêmement risque-averse du bookmaker. Le quatrième chapitre prolonge quant à lui cette approche au cas de produits financiers non binaires. Nous examinons différents modèles d'offre et de demande et en déduisons, par des techniques de programmation dynamique, des équations aux dérivées partielles dictant la formation des prix d'achat et de vente. Nous montrons finalement que l'écart entre prix d'achat et prix de vente ne dépend pas de la position du teneur de marche dans l'actif considère. Cependant le prix moyen dépend lui fortement de la quantité détenue par le teneur de marche. Une approche simplifiée est finalement proposée dans le cas multidimensionnel / This thesis is composed of four chapters. The first one deals with the pricing of financial products in a single jump model for the risky asset. This jump represents the bankrupcy of the quoted firm. We study the pricing of derivatives in the context of indifference of utility with an exponential utility. By means of dynamic programming we show that the bond price is solution of an ordinary differential equation and that stock price dependent options are solutions of an equation with partial derivatives of Hamilton-Jacobi-Bellman type generalizing the Black-Scholes one. We then try to quantify differences in the price obtained here and the one from Merton model without jump. The second chapter deals with a specific jump market : the soccer betting market. We recall the different model families for a soccer match and introduce some full model which allows to price the products recently born in this market in last ten years. Nevertheless the model complexity leads us to study a simplified model introduced by Dixon and Robinson from which we are able to derive closed formulas and simulate prices that we compare to market prices. We remark that implicit calibration gives pretty goof fit of market data. Third chapter developps the approach of Levitt [Lev04] on price formation in binary betting market held by a monopolistic market-maker operating in a one time step trading. We generalize Levitt results with european format of betting. We show that prices are distorded on the pressure of demand and offer, that phenomena introducing a market probability that allows to price products under this new measure. We identify some best model for demand and offer and market maker strategy and show that probability change is obvious in case of imperfect information about the value of the product. Fourth chapter generalizes this approach to the case of general payoffs and continuous time. The task is more complex and we just derive partial derivative equations from dynamic programming that enable us to give the bid-ask prices of the product traded by the market-maker. One result is that, in most models, bid-ask spread does not depend on the inventory held by the dealer whereas mid-quote price strongly reflects the unbalance of the dealer
227

Řízení veřejné stavební zakázky malého rozsahu se zaměřením na cenu / Management of small public tender with focus on price

Mrňová, Zuzana January 2018 (has links)
The purpose of this Master’s thesis is to propose a procedure for the management of small-scale public construction contracts for municipalities. The procedure is designed based on information obtained from an analysis of the development of the existence and quality of internal regulations, an analysis of the development of information openness and in particular, a questionnaire completed amongst the mayors of municipalities. The resulting procedure for the awarding of small-scale public construction contracts is divided into three categories according to the expected value of the public contract. For each category, the number of suppliers contacted, the address of the suppliers, the decision-making entity and the bid evaluation process are set out in such a way that small municipalities can use this procedure as an internal rule for small-scale public construction contracts.
228

Metoda Design-Build a její použití pro zadávání v ČR / Design-Build Delivery Method and its Respective Application in the Czech Republic

Paníček, Patrik January 2019 (has links)
This Diploma thesis follows up the award of public contracts using the Design-Build method. The first part focuses on the description of individual procurement methods and their advantages and disadvantages. In addition, the basic types of FIDIC terms and connditions are compared here. The second part describes and evaluates the terms of reference for specific projects commissioned by Design-Build in the Czech Republic. There is also a questionnaire survey that examines the viewpoints, knowledge and experience of contracting authorities with this method.
229

Zadávací řízení v procesu investiční výstavby / Tendering Procedure in Process of Investment Construction

Hrdinová, Eva January 2015 (has links)
The issue solved in this thesis is the procedure for the award of public contract with extensive subject matter of the construction works. In accordance with assumed level of fulfillment, over limit public order is awarded in open procedure. Afterwards, the analysis of submitted bids from contenders was created in parallel with an assessment of the impacts, which have occurred during the implementation of the fulfilling of the public contract. The thesis is examined from the perspective of the Act No. 137/2006 Coll., on Public Procurement, as amended. Future recommendation is the establishment of new amendment to that Act, with the aim to increase the evaluation criterion of economic advantageousness of tenders.
230

Statistická analýza vysokofrekvenčních časových řad finančních trhů / Statistical Analysis of High-Frequency Financial Time Series

Langer, Roman January 2011 (has links)
The goal of this Master's thesis is to analyze financial data by focusing primarily on the search of market inefficiencies that may lead to capitalization of found anomalies. The data comes from various sources and they need to be preprocessed. The analysis is based on high frequency time series statistical methods. The resultant characteristics are visualized.

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