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In the literature, there is no consensus as to which Value-at-Risk forecasting model is the best for measuring market risk in banks. In the study an analysis of Value-at-Risk forecasting model quality over varying economic stability periods for main indices from stock exchanges was conducted....
Persistent link: https://www.econbiz.de/10011967246
Risk estimation or volatility estimation at financial markets, particularly stock exchange markets, is complex issue of …
Persistent link: https://www.econbiz.de/10011901688
This paper revisits the performance of frequently used risk forecasting methods, such as the Value-at-Risk models. The aim is to analyze its performance, and mitigate its pitfalls by incorporating conditional variance estimates, as generated by a GARCH model. Notably, this paper tests several...
Persistent link: https://www.econbiz.de/10012925488
The purpose of this paper is to develop a new and simple backtesting procedure that extends the previous work into the multivariate framework. We propose to use the multivariate Portmanteau statistic of Ljung-Box type to jointly test for the absence of autocorrelations and cross-correlations in...
Persistent link: https://www.econbiz.de/10013144661
VaR remains important in market risk management as Basel keeps most of the backtesting based on 1% VaR. Comparative backtesting as practiced in the current literature suffers from a major double problem. On the one hand, the score functions, although strictly consistent, may assign very good or...
Persistent link: https://www.econbiz.de/10013294397
propose two simple hypothesis tests based only on results of probability theory without requiring any approximation or …
Persistent link: https://www.econbiz.de/10012936007
We study a class of backtests for forecast distributions in which the test statistic is a spectral transformation that weights exceedance events by a function of the modeled probability level. The choice of the kernel function makes explicit the user's priorities for model performance. The class...
Persistent link: https://www.econbiz.de/10011927115
The empirical joint distribution of return-pairs on stock indices displays high tail-dependence in the lower tail and low tail-dependence in the upper tail. The presence of tail-dependence is not compatible with the assumption of (conditional) joint normality. The presence of asymmetric-tail...
Persistent link: https://www.econbiz.de/10009725481
Persistent link: https://www.econbiz.de/10001736255
practical perspective. There is randomness in the estimation performances under both approaches for diferent data ranges and …
Persistent link: https://www.econbiz.de/10014547241