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Quantile-VaR is the wrong measure to quantify market risk for regulatory purposes

Jaschke, Stefan R. - 2001

Starting from the objective of banking supervision - to minimize the overall costs of banking to the general public - we show that the current standard of quantifying market risk is flawed. It is perfectly aligned with the interests of banks' shareholders and management, but not with the...

Persistent link: https://www.econbiz.de/10009614286

Coherent risk measures, valuation bounds, and (my,p)-portfolio optimization

Jaschke, Stefan R.; Küchler, Uwe - 1999

This paper presents a general theory that works out the relation between coherent risk measures, valuation bounds, and … theory presented seems to fill a gap between arbitrage valuation on the one hand and single agent utility maximization or … full-fledged equilibrium theory on the other hand. "Coherent" valuation bounds strike a balance in that the bounds can be …

Persistent link: https://www.econbiz.de/10009581108

Cyclical correlations, credit contagion, and portfolio losses

Giesecke, Kay (contributor); Weber, Stefan (contributor) - 2003 - [Elektronische Ressource]

Persistent link: https://www.econbiz.de/10001919109

Probabilistic aspects of financial risk

Föllmer, Hans - 2000

Problems arising in Finance have become a significant source of new developments in Stochastic Analysis. We discuss some recent case studies, in particular some decomposition and representation theorems which are motivated by problems of hedging derivatives and of intertemporal consumption choice.

Persistent link: https://www.econbiz.de/10009612020

Backtesting beyond VaR

Härdle, Wolfgang; Stahl, Gerhard - 1999

VaR models are related to statistical forecast systems. Within that framework different forecast tasks including Value-at-Risk and shortfall are discussed and motivated. A backtesting method based on the shortfall is developed and applied to VaR forecasts of areal portfolio. The analysis shows...

Persistent link: https://www.econbiz.de/10009582401

Net based spreadsheets in quantitative finance

Aydinli, Gökhan - 2002

Persistent link: https://www.econbiz.de/10009624849

Default compensator, incomplete information, and the term structure of credit spreads

Giesecke, Kay - 2001

We provide a framework for the analysis of term structures of credit spreads on corporate bonds in the presence of informational asymmetries. While bond investors observe default incidents, we suppose that they have incomplete information on the firm's assets and/or the threshold asset level at...

Persistent link: https://www.econbiz.de/10009620780

Giesecke, Kay - 2001

We propose a model of correlated multi-firm default with incomplete information. While public bond investors observe issuers' assets and defaults, we suppose that they are not informed about the threshold asset level at which a firm is liquidated. Bond investors form instead a prior on these...

Persistent link: https://www.econbiz.de/10009621426

Compensator-based simulation of correlated defaults

Giesecke, Kay - 2002

The market for derivatives with payoffs contingent on the credit quality of a number of reference entities has grown considerably over recent years. The risk analysis and valuation of such multi-name structures often relies on simulating the performance of the underlying credits. In this paper...

Persistent link: https://www.econbiz.de/10009624843

Credit contagion and aggregate losses

Giesecke, Kay; Weber, Stefan - 2002

theory of interacting particle systems. We clarify the structure of the equilibrium joint rating distribution using ergodic … losses ; voter model ; Choquet theory ; ergodic decomposition ; re-scaling …

Persistent link: https://www.econbiz.de/10009627288

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