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Model and estimation risk in credit risk stress tests
Grundke, Peter; Pliszka, Kamil; Tuchscherer, Michael - 2019
This paper deals with stress tests for credit risk and shows how exploiting the discretion when setting up and implementing a model can drive the results of a quantitative stress test for default probabilities. For this purpose, we employ several variations of a CreditPortfolioView-style model...
Persistent link: https://www.econbiz.de/10011981523
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Stress testing the German mortgage market
Barasinska, Nataliya; Haenle, Philipp; Koban, Anne; … - 2019
This paper presents a framework for estimating losses in the residential real estate mortgage portfolios of German …-trigger hypothesis of mortgage defaults. In order to analyse the possible credit losses stemming from residential mortgage lending we … to 2020 for the whole German banking sector. Our results show that loss rates in the residential mortgage portfolios of …
Persistent link: https://www.econbiz.de/10012012997
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Credit Portfolio Modelling and its Effect on Capital Requirements
Bulbul, Dilek - 2016
The subprime crisis revealed that the adoption of suitable systems for the management of credit risk is of utmost concern. The Basel Committee on Banking Supervision (2009) advises banks to use credit portfolio models with caution when assessing the capital adequacy. This paper investigates...
Persistent link: https://www.econbiz.de/10012988834
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The Risk Spiral : The Effects of Bank Capital and Diversification on Risk Taking
Peleg Lazar, Sharon - 2019
We present a model where bank assets are a portfolio of risky debt claims and analyze stockholders' risk-taking behavior while considering the strategic interaction between debtors and creditors. We find that: (1) as the leverage of a bank increases, risk shifting by borrowers increases, even if...
Persistent link: https://www.econbiz.de/10012902255
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Model and Estimation Risk in Credit Risk Stress Tests
Grundke, Peter - 2019
This paper deals with stress tests for credit risk and shows how exploiting the discretion when setting up and implementing a model can drive the results of a quantitative stress test for default probabilities. For this purpose, we employ several variations of a CreditPortfolioView-style model...
Persistent link: https://www.econbiz.de/10012889015
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Incremental Risk Charge Methodology
Xiao, Tim - 2014
The incremental risk charge (IRC) is a new regulatory requirement from the Basel Committee in response to the recent financial crisis. Notably few models for IRC have been developed in the literature. This paper proposes a methodology consisting of two Monte Carlo simulations. The first Monte...
Persistent link: https://www.econbiz.de/10013055237
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Credit portfolio modelling and its effect on capital requirements
Bülbül, Dilek; Lambert, Claudia - 2012
The subprime crisis revealed that the adoption of suitable systems for the management of credit risk is of utmost concern. The Basel Committee on Banking Supervision (2009) advises banks to use credit portfolio models with caution when assessing the capital adequacy. This paper investigates...
Persistent link: https://www.econbiz.de/10009528878
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Financial liability stress tests : an approach based on the use of a rating migration matrix
Kleszcz, Klaudia; Nehrebecka, Natalia - In: Central European economic journal 7 (2020) 54, pp. 13-32
The article addresses the issue of stress testing based on the probability of bankruptcy and a rating migration matrix. The analysis is conducted on a sample of listed companies in Poland in the years 1998-2016, and the forecasts are made for the years 2016-2018. Particular attention is paid to...
Persistent link: https://www.econbiz.de/10012303645
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Analysis of granularity adjustment for regulatory capital
Krali, Mario; Gurov, Andrey - In: Journal of central banking theory and practice 8 (2019) 3, pp. 111-132
The lack of portfolio granularity in terms of exposure has been shown to have important implications for the amount of a financial institution's economic capital. Based on a numerical simulation model, we provide concrete examples of how granularity affects capital levels. We achieve this by...
Persistent link: https://www.econbiz.de/10012101497
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When uncertainty decouples expected and unexpected losses
Juselius, Mikael; Tarashev, Nikola A. - 2022
A parsimonious extension of a well-known portfolio credit-risk model allows us to study a salient stylized fact - abrupt switches between high- and low-loss phases - from a risk-management perspective. As uncertainty about phase switches increases, expected losses decouple from unexpected...
Persistent link: https://www.econbiz.de/10012814386