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framework inapplicable. And it proposes a general theory to quantify estimation risk applicable to the present problem and …This paper theoretically and empirically analyzes backtesting portfolio VaR with estimation risk in an intrinsically … multivariate framework. For the fi rst time in the literature, it takes into account the estimation of portfolio weights in …
Persistent link: https://www.econbiz.de/10013132320
Historical Simulation (HS) and its variant, the Filtered Historical Simulation (FHS), are the most widely used Value-at-Risk forecast methods at commercial banks. These forecast methods are traditionally evaluated by means of the unconditional backtest. This paper formally shows that the...
Persistent link: https://www.econbiz.de/10013108779
Robustness of risk measures to changes in underlying loss distributions (distributional uncertainty) is of crucial importance when making well-informed risk management decisions. In this paper, we quantify for any given distortion risk measure its robustness to distributional uncertainty by...
Persistent link: https://www.econbiz.de/10012825260
propose two simple hypothesis tests based only on results of probability theory without requiring any approximation or …
Persistent link: https://www.econbiz.de/10012936007
higher moments or assumes them constant. In this paper, we propose a new simple approach to estimation of a portfolio VaR. We …
Persistent link: https://www.econbiz.de/10014213990
We modify Adrian and Brunnermeier's (2011) CoVaR, the Value-at-Risk (VaR) of the financial system conditional on an institution being in financial distress. We change the definition of financial distress from an institution being exactly at its VaR to being at most at its VaR. This change allows...
Persistent link: https://www.econbiz.de/10013115106
Returns in financial assets display consistent excess kurtosis and skewness, implying the presence of large fluctuations not forecasted by Gaussian models. This paper applies a resampling method based on the bootstrap and a bias-correction step to improve Value-at-Risk (VaR) forecasting ability...
Persistent link: https://www.econbiz.de/10011632622
Persistent link: https://www.econbiz.de/10012223947
We introduce a new hybrid approach to joint estimation of Value at Risk (VaR) and Expected Shortfall (ES) for high … lower cost in capital reserves. In ES estimation the hybrid model yields the smallest error statistics surpassing even the … ; extreme value theory ; bootstrapping …
Persistent link: https://www.econbiz.de/10003891679
Persistent link: https://www.econbiz.de/10013149680