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The GARCH(1,1) model and its extensions have become a standard econometric tool for modeling volatility dynamics of … financial returns and port-folio risk. In this paper, we propose an adjustment of GARCH implied conditional value-at-risk and … comparisons for a set of 18 stock market indices. In total, four competing copula-GARCH models are contrasted against each other …
Persistent link: https://www.econbiz.de/10010292668
application to VaR and ES forecasts for daily FTSE 100 index returns as generated by AR-GARCH, AR-GJR-GARCH, and AR-HEAVY models …
Persistent link: https://www.econbiz.de/10012114811
Risk diversification is the basis of insurance and investment. It is thus crucial to study the effects that could limit it. One of them is the existence of systemic risk that affects all of the policies at the same time. We introduce here a probabilistic approach to examine the consequences of...
Persistent link: https://www.econbiz.de/10010421271
Estimation or mis-specification errors in the portfolio loss distribution can have a considerable impact on risk measures. This paper investigates the sensitivity of tail-related risk measures including the Value-at-Risk, expected shortfall and the expectile-quantile transformation level in an...
Persistent link: https://www.econbiz.de/10012433159
A popular risk measure, conditional value-at-risk (CVaR), is called expected shortfall (ES) in financial applications …. The research presented involved developing algorithms for the implementation of linear regression for estimating CVaR as a … function of some factors. Such regression is called CVaR (superquantile) regression. The main statement of this paper is: CVaR …
Persistent link: https://www.econbiz.de/10012611178
This article reviews two leading measures of financial risk and an emerging alternative. Embraced by the Basel accords, value-at-risk and expected shortfall are the leading measures of financial risk. Expectiles offset the weaknesses of value-at-risk (VaR) and expected shortfall. Indeed,...
Persistent link: https://www.econbiz.de/10011996619
with those from an alternative bivariate multifractal model proposed by Calvet et al. (2006) and the bivariate CC-GARCH of … Bollerslev (1990). As it turns out, the multifractal models provide much more reliable results than CC-GARCH, and our new model …
Persistent link: https://www.econbiz.de/10010265839
Correlation models, such as Constant Conditional Correlation (CCC) GARCH model or Dynamic Conditional Correlation (DCC …) GARCH model, play a crucial role in forecasting Value-at-Risk (VaR) or Expected Shortfall (ES). The additional inclusion of …Korrelationsmodelle, z.B. GARCH-Modell der konstanten bedingten Korrelation (CCC) oder das GARCH-Modell der dynamischen …
Persistent link: https://www.econbiz.de/10013175978
This study aims to overcome the problem of dimensionality, accurate estimation, and forecasting Value-at-Risk (VaR) and Expected Shortfall (ES) uncertainty intervals in high frequency data. A Bayesian bootstrapping and backtest density forecasts, which are based on a weighted threshold and...
Persistent link: https://www.econbiz.de/10013200409
We introduce a neural network approach for assessing the risk of a portfolio of assets and liabilities over a given time period. This requires a conditional valuation of the portfolio given the state of the world at a later time, a problem that is particularly challenging if the portfolio...
Persistent link: https://www.econbiz.de/10013200551