Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Empirical Analysis of Credit Risk Regime Switching and Temporal Conditional Default Correlation in Credit Default Swap Valuation
Author: Anticipating Credit Events Using Credit Default Swaps, with An Application to Sovereign Debt Crises
Author: Mr.Jorge A. Chan-LauPublisher: International Monetary Fund
ISBN: 1451852916
Category : Business & Economics
Languages : en
Pages : 21
Book Description
In reduced-form pricing models, it is usual to assume a fixed recovery rate to obtain the probability of default from credit default swap prices. An alternative credit risk measure is proposed here: the maximum recovery rate compatible with observed prices. The analysis of the recent debt crisis in Argentina using this methodology shows that the correlation between the maximum recovery rate and implied default probabilities turns negative in advance of the credit event realization. This empirical finding suggests that the maximum recovery rate can be used for constructing early warning indicators of financial distress.
Credit Default Swap Markets in the Global Economy
Author: Go TamakoshiPublisher: Routledge
ISBN: 1351997033
Category : Business & Economics
Languages : en
Pages : 194
Book Description
This book provides a comprehensive overview for various segments of the global credit default swap (CDS) markets, touching upon how they were affected by the recent financial turmoil. The book uses empirical analysis on credit default swap markets, applying advanced econometric methodologies to the time series data. It covers not only well-studied sovereign credit default swap markets but also sector credit default swap indices (i.e., CDS index for the banking sector) and corporate credit default swap indices (i.e., Markit iTraxx Japan CDS index), which have not been fully examined by the previous literature. The book also investigates causality and co-movement among several credit default swap markets, or between CDS and other financial markets.
Time-changed Birth Processes, Random Thinning, and Correlated Default Risk
Author: Xiaowei DingPublisher: Stanford University
ISBN:
Category :
Languages : en
Pages : 120
Book Description
Credit risk pervades all nancial transactions. The credit crisis has indicated the need for quantitative models for valuation, hedging, rating, risk management and regulatory monitoring of credit risk. A credit investor such as a bank granting loans to rms or an asset manager buying corporate bonds is exposed to correlated default risk. A portfolio credit derivative is a nancial security that allows the investor to transfer this risk to the credit market. In the rst part of this thesis, we study the valuation and risk analysis of portfolio derivatives. To capture the complex economic phenomena that drive the pricing of these securities, we introduce a time-changed birth process as a probabilistic model of correlated event timing. The self-exciting property of a time-changed birth process captures the feedback from events that is often observed in credit markets. The stochastic variation of arrival rates between events captures the exposure of rms to common economic risk factors. We derive a closed-form expression for the distribution of a time-changed birth process, and develop analytically tractable pricing relations for a range of portfolio derivatives valuation problems. We illustrate our results by calibrating a tranche forward and option pricer to market rates of index and tranche swaps. A loss point process model such as a time-changed birth process is speci ed without reference to the portfolio constituents. It is silent about the portfolio constituent risks, and cannot be used to address applications that are based on the relationship between portfolio and component risks, for example constituent risk hedging. The second part of this thesis develops a method that extends the reach of these models to the constituents. We use random thinning to decompose the portfolio intensity into the sum of the constituent intensities. We show that a thinning process, which allocates the portfolio intensity to constituents, uniquely exists and is a probabilistic model for the next-to-default. We derive a formula for the constituent default probability in terms of the thinning process and the portfolio intensity, and develop a semi-analytical transform approach to evaluate it. The formula leads to a calibration scheme for the thinning processes, and an estimation scheme for constituent hedge sensitivities. An empirical analysis for September 2008 shows that the constituent hedges generated by our method outperform the hedges prescribed by the Gaussian copula model, which is widely used in practice.
The Pricing of Correlated Default Risk
Author: Nikola A. TarashevPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
In order to analyze the pricing of portfolio credit risk - as revealed by tranche spreads of a popular credit default swap (CDS) index - we extract risk-neutral probabilities of default (PDs) and physical asset return correlations from single-name CDS spreads. The time profile and overall level of index spreads validate our PD measures. At the same time, the physical asset return correlations are too low to account for the spreads of index tranches and, thus, point to a large correlation risk premium. This premium, which covaries negatively with current realized correlations and positively with future realized correlations, sheds light on market perceptions of and attitude towards correlation risk.Das Portfoliokreditrisiko setzt sich aus drei Hauptkomponenten zusammen: der Ausfallwahrscheinlichkeit (probability of default, PD), der Verlustquote (loss given default, LGD) und der Wahrscheinlichkeitsverteilung für gemeinsame Ausfälle. Mit der rasanten Entwicklung innovativer Produkte im Bereich der strukturierten Finanzierung ist die Bedeutung der dritten Komponente zusehends gestiegen. Allerdings herrscht keine Einigkeit darüber, wie die Marktteilnehmer diese schätzen. Im vorliegenden Arbeitspapier schlagen wir zunächst einen auf CDSMarktdaten beruhenden Ansatz zur Ableitung der Wahrscheinlichkeitsverteilung für gemeinsame Ausfälle vor. Mit diesem Ansatz werden risikoneutrale PDs und physische Asset-Return-Korrelationen aus der Höhe der Preise und dem Gleichlauf (Co-movement) von Single-name-CDS-Spreads abgeleitet. Anschließend benutzen wir diese Schätzungen in einer konkreten Anwendung unseres Ansatzes zur Berechnung von Prognosen für Tranchenspreads eines bekannten CDS-Index (Dow Jones CDX North America Investment Grade Index) und vergleichen diese mit empirischen Spreads am CDS-Indexmarkt.
Dependence in Credit Default Swap and Equity Markets
Author: Fei FeiPublisher:
ISBN:
Category :
Languages : en
Pages : 42
Book Description
Theoretical credit risk models a la Merton (1974) predict a non-linear negative link between a firm's default likelihood and asset value. This motivates us to propose a flexible empirical Markov-switching bivariate copula that allows for distinct time-varying dependence between credit default swap (CDS) spreads and equity prices in “crisis” and “tranquil” periods. The model identifies high dependence regimes that coincide with the recent credit crunch and the European sovereign debt crises, and is supported by in-sample goodness of fit criteria versus nested copula models that impose within-regime constant dependence or no regime-switching. Value at Risk forecasts to set day-ahead trading limits for hedging CDS-equity portfolios reveal the economic relevance of the model from the viewpoint of both regulatory and asymmetric piecewise linear loss functions.
Correlation in Credit Risk
Author: Xiaoling PuThe negative basis - Credit Default Swap contracts and credit risk during the financial crisis
Author: Matthias SchnarePublisher: GRIN Verlag
ISBN: 365603236X
Category : Business & Economics
Languages : en
Pages : 95
Book Description
Master's Thesis from the year 2010 in the subject Economics - Finance, grade: 5.0 (Schweiz), University of Zurich (Wirtschaftswissenschaften), language: English, abstract: The current developments in the credit or bond markets, influenced by the financial crisis and the economic downturn, revive a discussion about credit derivatives as an instrument of speculation and one cause or determinant of the financial crisis. Currently, CDS are used to speculate against the solvency of the different governments. Critics look at CDS contracts as Overthecounter (OTC) instruments that are not regulated and as bilateral contracts which can have a big influence on the financial position of market participants and on the real credit markets. CDS contracts are mainly instruments for investors to insure against a default of the debtor. For the seller of the CDS they are a possibility to participate in risks he perhaps could not have taken on the bond markets otherwise. These contracts separate the default risk of the debtor from the market conditions, e.g. the market interest rates. They make it possible to only trade the credit risk of a company or a country. Therefore, they can be instruments to proof the bond values and indicators for the real credit risk of the underlying. The discussion about CDS contracts is mostly a discussion including many prejudices and it deals with aspects from different topics which cannot be mixed. Therefore, a clear picture of advantages and disadvantages and especially values and risks of CDS is difficult to be found in the current public discussion and economic newspaper articles. A further phenomenon is that bond markets and CDS markets have lost their connection in the financial crisis. So the credit risk on both markets is valued differently: the prices on the two markets differed so much that market participants used these arbitrage possibilities to earn credit riskfree money for themselves and their customers It can be traded with a simple combination of the underlying bond and the fitting CDS contract. One of the causes of the basis can be the different liquidity level in the two separated markets. For the development of the basis during the crisis it is important to ask how big the changes are compared to the situation before the financial crisis and also how important the credit rating or the industry of the reference entity is.. The price difference, if the CDS price is lower than the credit risk priced by the bond of the same reference entity, is negative basiscalled
Credit Default Swap Spreads and Variance Risk Premia (VRP)
Author: Hao WangPublisher: DIANE Publishing
ISBN: 1437980163
Category : Reference
Languages : en
Pages : 43
Book Description
Pricing of Sovereign Credit Risk
Author: Mr.Emre AlperPublisher: International Monetary Fund
ISBN: 1463933770
Category : Business & Economics
Languages : en
Pages : 27
Book Description
We investigate the pricing of sovereign credit risk over the period 2008-2010 for selected advanced economies by examining two widely-used indicators: sovereign credit default swap (CDS) and relative asset swap (RAS) spreads. Cointegration analysis suggests the existence of an imperfect market arbitrage relationship between the cash (RAS) and the derivatives (CDS) markets, with price discovery taking place in the latter. Likewise, panel regressions aimed at uncovering the fundamental drivers of the two indicators show that the CDS market, although less liquid, has provided a better signal for sovereign credit risk during the period of the recent financial crisis.