[HTML][HTML] Application of vine copulas to credit portfolio risk modeling

M Geidosch, M Fischer - Journal of Risk and Financial Management, 2016 - mdpi.com
In this paper, we demonstrate the superiority of vine copulas over conventional copulas
when modeling the dependence structure of a credit portfolio. We show statistical and …

[HTML][HTML] A discussion on recent risk measures with application to credit risk: Calculating risk contributions and identifying risk concentrations

M Fischer, T Moser, M Pfeuffer - Risks, 2018 - mdpi.com
In both financial theory and practice, Value-at-risk (VaR) has become the predominant risk
measure in the last two decades. Nevertheless, there is a lively and controverse on-going …

A macroeconomic reverse stress test

P Grundke, K Pliszka - Review of Quantitative Finance and Accounting, 2018 - Springer
Reverse stress tests are a relatively new stress test instrument that aims at finding exactly
those scenarios that cause a bank to cross the frontier between survival and default …

Estimating correlation parameters in credit portfolio models under time-varying and nonhomogeneous default probabilities

K Jakob - Journal of Credit Risk, 2022 - papers.ssrn.com
Since the development of the first credit portfolio models at the end of the last century (eg,
CreditMetrics by JP Morgan and CreditRisk+ by Credit Suisse First Boston), the estimation of …

Asset correlation in residential mortgage-backed security reference portfolios

M Geidosch - Journal of Credit Risk, 2014 - papers.ssrn.com
This paper contributes to the literature about estimating asset correlation in two ways. First,
we compare the performance of different estimation approaches in a simulation study. By …

[HTML][HTML] Fast approximation methods for credit portfolio risk calculations

K Jakob, J Churt, M Fischer, K Nolte, Y Okhrin… - Digital Finance, 2023 - Springer
Credit risk is one of the main risks financial institutions are exposed to. Within the last two
decades, simulation-based credit portfolio models became extremely popular and replaced …

For Whom the Bell (Curve) Tolls

R Kashyap - The Journal of Private Equity, 2019 - JSTOR
We discuss a possible solution to an unintended consequence of having grades, certificates,
rankings, and other diversions in the act of transferring knowledge, zooming in specifically …

A quantitative model for structured microfinance

G Dorfleitner, C Priberny - The Quarterly Review of Economics and Finance, 2013 - Elsevier
We develop a quantitative model for structured microfinance instruments, which are
regarded as an important means for refinancing microfinance institutions. The quantitative …

GCPM: A? exible package to explore credit portfolio risk

K Jakob, M Fischer - Austrian Journal of Statistics, 2016 - ajs.or.at
In this article we introduce the novel GCPM package, which represents a generalized credit
portfolio model framework. The package includes two of the most popular mod-eling …

Justification of per-unit risk capital allocation in portfolio credit risk models

G Dorfleitner, T Pfister - … Journal of Theoretical and Applied Finance, 2014 - World Scientific
Risk capital allocation is based on the assumption that the risk of a homogeneous portfolio is
scaled up and down with the portfolio size. In this article we show that this assumption is true …