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Der Beitrag liefert Detailanalysen der Verfahren zur Bestimmung von Ausfallwahrscheinlichkeiten, prüft die Methoden auf ihre Eignung für den realen Einsatz in Banken und zeigt Punkte auf, die bei der Anwendung von Bedeutung sind. Part 2: Marktdaten basierte Verfahren, RiskNEWS, July 2002
Wehrspohn 9620 Downloads29.12.2005
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Der Beitrag liefert Detailanalysen der Verfahren zur Bestimmung von Ausfallwahrscheinlichkeiten, prüft die Methoden auf ihre Eignung für den realen Einsatz in Banken und zeigt Punkte auf, die bei der Anwendung von Bedeutung sind. Part 1: Das kanonische Verfahren: Mittlere Ausfallhäufigkeiten, RiskNEWS, May 2002
Wehrspohn 10227 Downloads29.12.2005
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An analysis and further development of the building blocks of modern credit risk management: Definitions of default; Estimation of default probabilities; Exposures; Recovery Rates; Pricing; Concepts of portfolio dependence; Time horizons for risk calculations; Quantification of portfolio risk; Estimation of risk measures; Portfolio analysis and portfolio improvement; Evaluation and comparison of credit risk models; Analytic portfolio loss distributions.
Wehrspohn 8620 Downloads29.12.2005
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We provide an analytic solution to the asset value credit risk model that allows for heterogeneous correlations, default probabilities, recovery rates and exposures given certain regularity conditions are fulfilled. Additionally, we extend the asset value model to include event risks such as country risk or dependencies between individual clients and derive analytic loss distributions and loss densities.
Wehrspohn 8869 Downloads29.12.2005
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We place the asset value credit portfolio model in the larger context of generalized correlation models where the normal distribution assumption of asset returns is replaced by an abstract elliptical distribution. Based on closed-form solutions for homogenous portfolios, we show in particular that the classical asset value model is not robust against misspecifications of the assumed asset return distribution, that it further systematically underestimates portfolio risk, if the asset return distribution is non-normal, and that it may also induce insufficient supply of economic capital to cover credit portfolio risk in the worlds financial institutions.
Wehrspohn 9075 Downloads29.12.2005
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In: Maurice Pedergnana / Christoph Schacht, 2004, Kreditmarkt Schweiz, Schriften aus dem IFZ Institut für Finanzdienstleistungen Zug, Band 5, Verlag IFZ - HSW Luzern, pp. 117-136 We provide a practical and model independent technique that enables the risk manager to understand and visualize credit portfolio structures, to compare portfolio components as to their contribution of risk and positive occasion to the portfolio, to receive some hints by what actions credit portfolio risk can be reduced and how its profitability can be improved, to be aware of the implications of strategic management decisions for portfolio analysis and development without having to know complex mathematical methodologies.
Wehrspohn 7948 Downloads29.12.2005
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We provide a general, model-independent approach to the construction of optimal simultaneous validation tests of credit default probabilities, dependencies between creditors, and credit risk models that maximize the power of test for any given portfolio-size and number of periods of data available and make use of default data only. Results can be used to validate banks' estimates of rating default probabilities, correlations and choice of credit risk models in the Basel II supervisory review process. Example-analyses are given for the generalized asset value model.
Wehrspohn 9002 Downloads29.12.2005
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Die Validation von geschätzten Ausfallwahrscheinlichkeiten und anderen Risikoparametern für die Bestimmung der Eigenkapitalunterlegung ist eine bisher wenig beachtete Komponente des neuen Baseler Accords, die auch unabhängig vom Aufsichtsrecht für Risikomanager große Bedeutung hat. Gravierende Probleme sprachen bisher dagegen Methoden der Validation interner Marktrisikomodelle auf Kreditrisiken zu übertragen. Ein anderer Ansatz gewährleistet jedoch, dass die besondere Struktur der Kreditrisikomanagements genau erfasst und der Informationsgehalt von Ausfalldaten in der Validation optimal genutzt wird. Die Ergebnisse zeigen, dass Großbanken gegenüber mittelständischen Instituten oder gut aufgestellten kleineren Banken nicht ohne weiteres kompetitive Vorteile bei der Validation von Ausfallwahrscheinlichkeiten besitzen. Aus den Ergebnissen lassen sich ebenfalls strategische Impulse für die Weiterentwicklung des Datenmanagements von Banken und Ratingagenturen ableiten.
Wehrspohn 10049 Downloads29.12.2005
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The internal ratings based approach (IRB) of the Basel Committee has three problems: few incentives for banks to adopt the IRB approach, a complicated technical framework and very conservative aggregation rules. We suggest the following remedies: First, we suggest a new design of transition rules that produce strong incentives for banks to adopt the IRB approach. Second, we outline a lean IRB approach which is simpler and avoids adjustments and caps that are difficult to justify. This approach can be flexibly calibrated to proxy any IRB approach. Third, we suggest a simple aggregation rule for capital requirements across portfolio segments that takes the diversification effect across segments into account.
Wehrspohn 9072 Downloads29.12.2005
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Der Artikel liefert eine Herleitung der Formeln für die Risikogewichte in den Baseler Konsultationsdokumenten und zeigt Wege auf, wie die Verfahren vereinfacht und an typische Risikoprofile von Kreditportfolien angepasst werden können. Zur Illustration werden die Ergebnisse auf echte Portfolien angewendet.
Wehrspohn 12577 Downloads29.12.2005
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RiskNET Intensiv-Seminare

Die Intensiv-Seminare der RiskAcademy® konzentrieren sich auf Methoden und Instrumente für evolutionäre und revolutionäre Wege im Risikomanagement. Die Seminare sind modular aufgebaut und bauen inhaltlich aufeinander auf (Basis, Fortgeschrittene, Vertiefung).

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Rückblick RiskNET Summit 2022

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Interview mit Professor em. Dr. Günther Schmid

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Interview mit Profi-Bergsteiger David Göttler

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Interview mit Dr. Alexander Fink (ScMI)

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Interview mit Oberstleutnant Thorsten Kodalle (Führungsakademie der Bundeswehr)

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Rückblick und Impressionen RiskNET Summit 2021

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Interview mit Tom Theisejans, IT-Notfallbeauftragter, Deutsche Bahn Konzern

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Interview mit Prof. Schmid: Globaler Ordnungsanspruch, made in China

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Interview mit Dr. Christian Glaser: Wirecard & Co.: Warum sich große Betrugsfälle immer wieder ereignen

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Interview mit Prof. Dr. Michael Huth zu Risiken in der Supply Chain

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Rückblick und Impressionen RiskNET Summit 2020

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Interview mit Prof. Dr. Jürgen Döllner, Hasso-Plattner-Institut (HPI), Universität Potsdam

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Interview mit Prof. Dr. Günther Schmid, vormals Bundesnachrichtendienst

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Dialog zwischen Harald Philipp, Mountainbike Abenteurer und Frank Romeike, Gründer des Kompetenzportals RiskNET

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Interview mit Tamara Lunger über die Gratwanderung auf den höchsten Bergen der Welt

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