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Risk evaluation is a forecast, and its validity must be backtested. Probability distribution forecasts are used in this work and allow for more powerful validations compared to point forecasts. Our aim is to use bivariate copulas in order to characterize the in-sample copulas and to validate...
Persistent link: https://www.econbiz.de/10013405681
In this paper, we assess the informational content of daily range, realized variance, realized bipower variation, two time scale realized variance, realized range and implied volatility in daily, weekly, biweekly and monthly out-of-sample Value-at-Risk (VaR) predictions. We use the recently...
Persistent link: https://www.econbiz.de/10013113342
.99%. Accordingly, this paper presents a semi-parametric estimation method, re-scaling data from high- to low-frequency which allows to … obtain significantly more data points for the estimation of the respective risk measures. The presented methodology in the α …
Persistent link: https://www.econbiz.de/10012827639
realized volatility and the augmented GARCH models with the FHS or the EVT quantile estimation methods produce superior VaR …
Persistent link: https://www.econbiz.de/10013126884
Persistent link: https://www.econbiz.de/10011921089
We propose two simple evaluation methods for time varying density forecasts of continuous higher dimensional random variables. Both methods are based on the probability integral transformation for unidimensional forecasts. The first method tests multinormal densities and relies on the rotation...
Persistent link: https://www.econbiz.de/10013138453
We argue that the practise of valuing the portfolio is important for the calculation of the VaR. In particular, the seller (buyer) of an asset does not face horizontal demand (supply) curves. We propose a partially new approach for incorporating this fact in the VaR and in an empirical...
Persistent link: https://www.econbiz.de/10013116709
In this note it is argued that the estimation error in Value-at-Risk predictors gives rise to underestimation of …
Persistent link: https://www.econbiz.de/10013155483
In this study we hypothesise that more frequent extreme negative daily equity returns result in higher tail risk, and this subsequently increases firms' likelihood of entering financial distress. Specifically, we investigate the role of Value-at-risk and Expected Shortfall in aggravating firms'...
Persistent link: https://www.econbiz.de/10012902824
This paper attempts to provide a decision-theoretic foundation for the measurement of economic tail risk, which is not only closely related to utility theory but also relevant to statistical model uncertainty. The main result is that the only risk measures that satisfy a set of economic axioms...
Persistent link: https://www.econbiz.de/10013034370