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Systémové riziko ve finančním a energetickém sektoru: přístup dynamických faktorových kopula funkcí / Systemic Risk in the European Financial and Energy Sector: Dynamic Factor Copula ApproachNevrla, Matěj January 2016 (has links)
In the thesis we perform analysis of systemic risk in the financial and energy sector in Europe. As the econometric tool for estimating dependencies across the subjects we employ factor copula model with GAS dynamics of Oh & Patton (2013b). We apply this model to daily CDS spreads. Based on the estimated results we perform Monte Carlo simulations in order to obtain future values of CDS spreads and measure probability of systemic events. We conclude that substantially higher systemic risk is present within the financial sector. We also find that the most systemic companies from both sectors come from Spain. JEL Classification C53, C55, C58, G17 Keywords Credit Default Swap, Energy Sector, Factor Copula, Financial Sector, Generalized Autore- gressive Score Model, Systemic Risk Author's e-mail matej.nevrla@gmail.com Supervisor's e-mail barunik@fsv.cuni.cz
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Essays on Mutual Funds and Fund ManagersLi, Ma 28 August 2018 (has links)
Die vorliegende Dissertation besteht aus drei Kapiteln über die Investmentfonds. Das erste Kapitel befasst sich mit der Rolle der Fondsmanager in der Bilanzverschönerung. Auf Basis der Analyse der Karrierewege von amerikanischen Fondsmanagern werden signifikante zusammenwirkende Manager-Fixed-Effects identifiziert, die nach der Kontrolle der endogenen Matching-Probleme immer noch robust sind. Die geschätzten Manager-Fixed-Effects haben signifikante Einflüsse auf die Out-of-Sample-Vorhersagen. Außerdem wird festgestellt, dass die Verriegelungen der Investmentfonds, die von gemeinsamen Managern verwaltet wurden, wichtige Kanäle für die Bilanzverschönerung verursachen. Das zweite Kapitel beschäftigt sich mit den Investmentstrategien der Fonds im Hinblick auf die Nutzung von Credit Default Swaps (CDS). Die Zuordnung der CDS-Positionen der Investmentfonds zu ihrem Bestandportfolio bietet eine neue Methodik zur Identifizierung der CDS-Strategien und kompensiert somit die Analysen der existierenden Literatur auf der Makroebene. Die Ergebnisse zeigen, dass die Anreize zur Risikoreduzierung die Spekulationsanreize dominieren, insbesondere, wenn die Kreditexposition durch ungedeckte Leerverkäufe der CDS-Verträge erhöht wird. Die erfahrenen Fondsmanager tendieren dazu, mehr Kreditrisiko in Kauf zu nehmen, während es für die Fondsmanagerinnen wahrscheinlicher als für ihre männlichen Kollegen ist, gegen das bestehende Risiko abzusichern. Der letzte Teil nimmt die Pleite von Lehman Brothers unter die Lupe, um sich mit der daraus resultierenden unerwarteten Schließung der CDS-Positionen als einem natürlichen Experiment auseinanderzusetzten. Diese Studie dient zur Untersuchung der Risiko- und Leistungsimplikationen der CDS-Investments der Fonds. Die Investmentfonds besitzen bei ihren CDS-Transaktionen im Durchschnitt einen beachtlichen Teil Extremrisiko. Während die CDS-Nutzer von guten Gesamtmarktlagen profitieren, erleiden sie unter Verlusten bei geclusterten Ausfällen. / This dissertation comprises of three chapters on mutual funds. The first chapter establishes the role of managers in the deceptive practice of window dressing. Employing comprehensive career history of U.S. mutual fund managers, I find strong jointly significant manager fixed effects, which are robust after addressing endogenous matching concerns. The estimated manager fixed effects are significant in making out-of-sample predictions. Further I establish that mutual fund interlocks through common managers are important channels that spread window dressing. The second chapter studies the investment strategies of mutual funds regarding their use of credit default swaps (CDS). Matches between mutual funds’ CDS positions and their underlying portfolio in the holdings facilitate a new approach in identifying CDS strategies that complements the “macro” level analyses in the existing literature. I find risk reducing incentives are dominated by speculative incentives, especially those to increase credit exposure via naked short CDS contracts. Experienced fund managers tend to take on more credit risk, while female managers are more likely to hedge comparing with their male peers. The third chapter employs the collapse of Lehman Brothers and the resulting sudden closures of CDS positions as a natural experiment to examine the risk and performance implications of mutual funds’ CDS investments. Funds on average load up on a significant amount of tail risk by trading CDS. While CDS users benefit when market conditions are favorable, they suffer during periods of clustered defaults.
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Trh kreditních derivátů / Credit derivatives marketProkop, Martin January 2010 (has links)
The main objective of this thesis is to acquaint the reader with the main types of credit derivatives, with the methods of functioning and with main valuation principles. The theoretical part focus on description of credit derivatives market developement with more detailed description of subjcts, who are operating on credit derivatives market. The analysis fosus on how the financial crises influenced these subjects and their credit derivatives portfolios. I have also described the new suggested regulation changes. As a conclusion is the estimation of the regulation changes on the credit derivatives market size.
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RELATIONSHIP BETWEEN SOVEREIGN CREDIT DEFAULT SWAP AND STOCK MARKETS- The Case of East AsiaBasazinew, Serkalem Tilahun, Vashkevich, Aliaksandra January 2013 (has links)
When adjusted to sovereign entities, the structural credit risk model assumes a negative (positive) relationship between sovereign CDS spreads and stock prices (volatilities). In theory both markets are supposed to incorporate new information simultaneously. Discrepancies from the theoretical relationship can be exploited by capital structure arbitrageurs. In our thesis we study the intertemporal relationship between sovereign CDS and stock index markets in East Asia during the period of 2007 – 2011. We detect a negative (by and large positive) relationship between the Asian CDS spreads and stock indexes (volatilities). Across the whole region the sovereign CDS market dominates the price discovery process. However, 4 out of 7 Asian countries (Japan, Korea, Malaysia and the Philippines) demonstrate a feedback effect. The stock markets of countries with higher credit spreads (Indonesia, the Philippines and Korea) appear to react more severely at heightened variance in the CDS market. When considered separately for turbulent vs. calm periods, we find that the lead-lag relationship between the Asian sovereign CDS and stock markets is not stable. Apart from that, both markets become more interrelated during periods of increased volatility. The dependency of Asian CDS spreads and stock indexes on the “fear index” detected in the frames of robustness check implies an integration of both markets into the global one. Therefore, while seeking for arbitrage opportunities in the respective Asian markets one should also take into account possible influences of broader global factors.
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Applying a credit default swap valuation approach to price South African weather derivatives / Amelia Nadine HolemansHolemans, Amelia Nadine January 2010 (has links)
Most farmers in South Africa use standard insurance to protect their crops against natural disasters
such as hail or strong winds. However, no South African insurance contracts exist to compensate
for too much or too little rain (although floods are covered), or which will pay out if
temperatures were too high or too low for a certain period of time for the relevant crop.
Weather derivatives - which farmers may employ to ensure crops against adverse temperatures -
do exist, but these are mostly available in foreign markets in the form of Heating Degree Days
contracts and Cooling Degree Day contracts and are used chiefly by energy companies. Some
South African over-the-counter weather derivatives are available, but trading in these is rare and
seldom used.
The goal of this dissertation is to establish a pricing equation for weather derivatives specifically
for use in the South African market. This equation will be derived using a similar methodology
to that employed for credit default swaps. The premium derived will be designed to compensate
grape farmers from losses arising from two different climatic outcomes - in this case temperature
and precipitation. These derivatives will be region and crop specific and the formulation will be
sufficiently flexible as to allow for further climatic possibilities (which may be added at a later
stage).
These weather derivative premiums will then be compared to standard crop insurance to establish
economic viability of the products and recommendations will be made regarding their usage.
The possibility of the simultaneous use of these derivatives and standard crop insurance for optimal
crop coverage will also be explored and discussed. / Thesis (M.Com. (Risk management))--North-West University, Potchefstroom Campus, 2011.
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Applying a credit default swap valuation approach to price South African weather derivatives / Amelia Nadine HolemansHolemans, Amelia Nadine January 2010 (has links)
Most farmers in South Africa use standard insurance to protect their crops against natural disasters
such as hail or strong winds. However, no South African insurance contracts exist to compensate
for too much or too little rain (although floods are covered), or which will pay out if
temperatures were too high or too low for a certain period of time for the relevant crop.
Weather derivatives - which farmers may employ to ensure crops against adverse temperatures -
do exist, but these are mostly available in foreign markets in the form of Heating Degree Days
contracts and Cooling Degree Day contracts and are used chiefly by energy companies. Some
South African over-the-counter weather derivatives are available, but trading in these is rare and
seldom used.
The goal of this dissertation is to establish a pricing equation for weather derivatives specifically
for use in the South African market. This equation will be derived using a similar methodology
to that employed for credit default swaps. The premium derived will be designed to compensate
grape farmers from losses arising from two different climatic outcomes - in this case temperature
and precipitation. These derivatives will be region and crop specific and the formulation will be
sufficiently flexible as to allow for further climatic possibilities (which may be added at a later
stage).
These weather derivative premiums will then be compared to standard crop insurance to establish
economic viability of the products and recommendations will be made regarding their usage.
The possibility of the simultaneous use of these derivatives and standard crop insurance for optimal
crop coverage will also be explored and discussed. / Thesis (M.Com. (Risk management))--North-West University, Potchefstroom Campus, 2011.
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Analysis of alternative methods of operational risk transfer across financial industry sectorsPyć, Agnieszka January 2009 (has links)
Zugl.: München, Univ., Diss., 2009 / Hergestellt on demand
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Greenhouse Gas Footprint Minimization of Credit Default Swap BasketsBritse, Oscar, Jarnmo, Johan January 2018 (has links)
Global bond market capitalization amounts to approximately $100 trillion, compared to $60 trillion in the equity markets. Despite debt financing being a large part of the global financial market, the measurements and greenhouse gas reduction investment strategies to date are not nearly as thorough as for equity financing. More recently, the problem has been brought into light by the World Bank, expressing concerns about the crucial role of debt financing activities in the current and upcoming threats caused by climate change. A commonly used credit derivative in debt financing is credit default swaps (CDS), which is an agreement between two parties to exchange the credit risk of a reference entity. The buyer of the contract makes fixed periodic payments to the seller of the contract, who collects the premiums in exchange for making the protection buyer whole in the case of a defaulting reference entity. This thesis aims to minimize the greenhouse gas emission exposure for two CDS indices, iTraxx Main and CDX.IG, each consisting of 125 equally weighted constituents, or companies. The CDS indices are widely used high liquid fixed income instruments. In 2017, iTraxx Main had a monthly trading volume of $330-440 billion notional, and CDX.IG a corresponding volume of $200-275 billion. In order to rate the greenhouse gas emissions of the constituents, the ECOBAR model was used. The model utilizes a discrete ranking score system, where the aim is to obtain as low score as possible. To minimize the ECOBAR score for the baskets, Markowitz Modern Portfolio Theory was used, implemented by using a quadratic programming algorithm. By optimizing the portfolios while retaining a low tracking error and high correlation toward the CDS indices, underlying investment properties were retained. We show that one can construct replicated portfolios of the CDS indices that have significantly lower ECOBAR scores than the indices themselves, whilst still maintaining a low tracking error and high correlation with the actual indices. When constructing baskets of fewer constituents, one can replicate the indices with merely 10-30 constituents, without worsening the tracking error or correlation substantially, and obtain an even lower ECOBAR score for the respective portfolios.
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Cointegração e price discovery do risco soberano brasileiroDelfino, Denísio Augusto Liberato 20 April 2007 (has links)
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Previous issue date: 2007-04-20T00:00:00Z / The law of one price states that all identical assets, traded in different markets, must have only one price. In this dissertation, we aim to examine whether the Brazilian sovereign credit risk, traded in the international financial market, is priced similarly in the traditional bonds market as well as in the new and growing credit derivatives market. In addition to that, we make use of the Price Discovery analysis to study which of the two markets moves more rapidly in response to changes in the credit conditions in the Brazilian economy. As for the empirical analysis, we make use of time series econometrics, more specifically cointegration analysis and vector error correction. Our findings corroborate the theoretical prediction related to the law of one price, i.e., the Brazilian credit risk, either in the bonds market or in the credit derivatives market, move together in the long run. Our results also show that the majority of price discovery occurs in the credit derivatives market. / A lei do preço único afirma que o mesmo ativo negociado em diferentes mercados deve apresentar preços equivalentes. Este trabalho busca verificar se o risco de crédito soberano brasileiro negociado no mercado internacional é precificado de forma semelhante tanto nos tradicionais mercados de títulos quanto no novo e crescente mercado de derivativos de crédito. Adicionalmente, utiliza-se a análise de Price Discovery para examinar qual dos mercados se move mais rapidamente em resposta às mudanças nas condições de crédito da economia brasileira. A análise empírica é feita por meio de modelos de séries de tempo, mais especificamente análise de cointegração e vetor de correção de erros. Os resultados confirmam a predição teórica da lei do preço único de que o risco de crédito brasileiro, tanto nos mercados de títulos quanto no mercado de derivativos de crédito, movem-se juntos no longo prazo. Por fim, a maior parte do Price Discovery ocorre no mercado de derivativos de crédito.
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Informační hodnota oficiálního ratingu v kontextu tržních inovací / Informatory value of official rating in context of market innovationsHrouzek, Miroslav January 2015 (has links)
The subject of this thesis is recent development of credit evaluation industry and analysis of rating agency`s behaviour in relation to official rating changes. In the first chapter, fundamental limitations of analytical ratings are defined. Stating both advantages and disadvantages arising mainly from market defficiency, the second one introduces credit default swap as an alternative manner for credit risk measurement. Next part summarizes existing academic activity in context of rating informatory value, highlighting abnormal and asymmetric market reactions. Based on Moodys` approach, the fouth chapter provides reader with the concept of market implied ratings that are consequently used to analyse relation between CDS-IR and official ratings. The last subchapters investigate sensitivity ratio of how rating gap level determines prospective response of rating agency.
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