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The recent financial crisis has accentuated the fact that extreme outcomes have been overlookedand not dealt with adequately. While extreme value theories have existed for a long time, themultivariate variant is difficult to handle in the financial markets due to the prevalentheteroskedasticity...
Persistent link: https://www.econbiz.de/10005870713
Persistent link: https://www.econbiz.de/10001774767
Extreme Value Theory (EVT) has develop ed very rapidly over the past two decades both methodologically and with respect to applications. Whereas (non–life) actuaries have, at least implicitly, used EVT techniques for a long time, mainly through the emergence of quantitative Risk Management, EVT...
Persistent link: https://www.econbiz.de/10005858379
The Basel Committee on Banking Supervision ("the Committee") released a consultative document that included a regulatory capital charge for operational risk. Since the release of the document, the complexity of the concept of "operational risk" has led to vigorous and recurring discussions. We...
Persistent link: https://www.econbiz.de/10005858943
results indicate that EVT based VaR estimates are more accurate at higher quantiles. According to estimated Generalized Pareto …
Persistent link: https://www.econbiz.de/10005859080
This paper demonstrates the extensive scope of an alternative to standardinstrumental variables methods, namely covariate-based methods, for identifying and es-timating effects of interest in general structural systems. As we show, commonly usedeconometric methods, speci…cally parametric,...
Persistent link: https://www.econbiz.de/10009302533
Several recent papers treated robust and efficient estimation of tail index parameters for (equivalent) Pareto and …
Persistent link: https://www.econbiz.de/10005847011
For estimating the shape parameter of Paretian excess claims, certainBayesian estimators, which are closely related to the Hill estimator, have been suggested in the insurance literature...
Persistent link: https://www.econbiz.de/10005847164
distribution termed the \double Pareto," which allows the thickness of the tails and theexistence of moments to be determined …
Persistent link: https://www.econbiz.de/10008911510
This paper studies the distribution of the classical t-ratio with data generatedfrom distributions with no nite moments and shows how classical testing is affectedby bimodality. A key condition in generating bimodality is independenceof the observations in the underlying data generating process...
Persistent link: https://www.econbiz.de/10008911511