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real economic activity growth, in line with a risk shock. Conversely, a certainty shock (a shock strongly decreasing …
Persistent link: https://www.econbiz.de/10012180723
probabilities, on reduced-form credit risk stress testing. This type of uncertainty is omnipresent in most macroeconomic stress … testing applications due to short time series for banks' portfolio risk parameters and highly collinear macroeconomic … distributions and implied capital shortfalls by conducting a full-edged top-down credit risk stress test for over 1,500 German banks …
Persistent link: https://www.econbiz.de/10011897976
To simultaneously consider mixed-frequency time series, their joint dynamics, and possible structural changes, we introduce a time-varying parameter mixed-frequency VAR. To keep our approach from becoming too complex, we implement time variation parsimoniously: only the intercepts and a common...
Persistent link: https://www.econbiz.de/10011903709
We apply Bayesian Model Averaging and a frequentistic model space analysis to assess the pricing-determinants of credit default swaps (CDS). Our study focuses on the complete model space of plausible models covering most of the variables and specifications used elsewhere in the literature,...
Persistent link: https://www.econbiz.de/10011561899
results show that by considering time-varying return and volatility spillovers when calculating the risk-minimising portfolio … framework is a bivariate volatility model, where volatility spillovers of either positive or negative sign are allowed for. Our … countries. Regarding the volatility spillovers, such spillovers from bond returns to those of stocks are stronger than the other …
Persistent link: https://www.econbiz.de/10011663407
stochastic volatility of asset prices and to give theoretical arguments for empirically well documented facts. We show that … stochastic volatility. …
Persistent link: https://www.econbiz.de/10013428399
instance of precision-based sampling methods that operate on the inverse variance-covariance matrix of the states (also known … other instances of precision-based sampling, computational gains are considerable. Relevant applications include trend …
Persistent link: https://www.econbiz.de/10014336195
states and model variables, which is sparse and banded in many economic applications and allows for efficient sampling. The … existing literature on precision-based sampling is focused on complete-data applications, whereas the proposed samplers in this …
Persistent link: https://www.econbiz.de/10012510141
We analyze Granger causality testing in a mixed-frequency VAR, where the difference in sampling frequencies of the … application involving daily realized volatility and monthly business cycle fluctuations. …
Persistent link: https://www.econbiz.de/10011415576
The severity function approach (abbreviated SFA) is a method of selecting adverse scenarios from a multivariate density. It requires the scenario user (e.g. an agency that runs banking sector stress tests) to specify a "severity function", which maps candidate scenarios into a scalar severity...
Persistent link: https://www.econbiz.de/10011755965