Showing 1 - 10 of 545
Persistent link: https://www.econbiz.de/10010251663
evaluate the distributed volatility is offered. Distributed volatility, however, as VaR, helps to evaluate the positive and … negative part of volatility, but unlike VaR, describes volatility dynamics. So it allows forecast calculation of the financial …
Persistent link: https://www.econbiz.de/10010599754
We enhance the method of integrating scenarios proposed in Ergashev (J Financ Serv Res 41(3):145–161, 2012) into risk models. In particular, we provide additional theoretical insights of the method with focus on stress testing Value-at-Risk models. We extend the application of the method,...
Persistent link: https://www.econbiz.de/10011154705
This paper examines whether VaR models that are created and suited for developed and liquid markets apply to the … volatile and shallow financial markets of EU candidate states. To this end, several VaR models are tested on five official … stock indexes from EU candidate states over a period of 500 trading days. The tested VaR models are: a historical simulation …
Persistent link: https://www.econbiz.de/10011008840
Standard risk metrics tend to underestimate the true risks of hedge funds becauseof serial correlation in the reported returns. Getmansky et al. (2004) derive mean,variance, Sharpe ratio, and beta formulae adjusted for serial correlation. Followingtheir lead, adjusted downside and global...
Persistent link: https://www.econbiz.de/10011255664
This paper investigates the impact of background risk on an investor’s portfolio choice in a mean-VaR, mean-CVaR and … mean-variance framework, and analyzes the characterizations of the mean-variance boundary and mean-VaR efficient frontier …
Persistent link: https://www.econbiz.de/10011258298
(specification and estimation risks) on VaR estimates. We find that integrating the model risk into the VaR computations implies a … substantial minimum correction of the order of 10-40% of VaR levels. We also present results of a practical method Ñ based on a … backtesting framework Ñ for incorporating the model risk into the VaR estimates. …
Persistent link: https://www.econbiz.de/10009003413
The Basel Advanced Measurement Approach requires financial institutions to compute capital requirements on internal data sets. In this paper we introduce a new methodology permitting capital requirements to take into account the embedded dependence structures of operational risks. The loss...
Persistent link: https://www.econbiz.de/10009003415
leverage emerges in equilibrium at the maximum level such that VaR = 0, so there is no default in equilibrium, provided that … have sufficiently heterogenous beliefs over three or more states, VaR = 0 fails to hold in equilibrium. We study commonly … different risk aversion. We find two main departures from VaR = 0. First, both examples show that with enough heterogeneity …
Persistent link: https://www.econbiz.de/10009018061
The paper evaluates several hundred one-day-ahead VaR forecasting models in the time period between the years 2004 and …
Persistent link: https://www.econbiz.de/10009216657