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measurement procedure', which includes both of these steps, and introduce a rigorous framework for studying the robustness of risk … measurement procedures and their sensitivity to changes in the data set. Our results point to a conflict between the subadditivity … and robustness of risk measurement procedures and show that the same risk measure may exhibit quite different …
Persistent link: https://www.econbiz.de/10008675020
This paper presents empirical evidence on the performance of a number of selected risk measurement models for measuring … VaR risk measure during good and bad times. The soundness of model performance in the accuracy of estimated VaRs are …
Persistent link: https://www.econbiz.de/10010817022
-varying dependence structure of market and in VaR and ES measures especially during global financial crises period. Empirical results …
Persistent link: https://www.econbiz.de/10010816752
discuss their advantages and limitations. By using both VaR and TVaR to compute the loading, we see that only the latter …
Persistent link: https://www.econbiz.de/10010832994
Expected Shortfall (ES) has been widely accepted as a risk measure that is conceptually superior to Value-at-Risk (VaR … not to be elicitable which means that backtesting for ES is less straight-forward than, e.g., backtesting for VaR …. Expectiles have been suggested as potentially better alternatives to both ES and VaR. In this paper, we revisit commonly accepted …
Persistent link: https://www.econbiz.de/10010821003
discuss their advantages and limitations. By using both VaR and TVaR to compute the loading, we see that only the latter …
Persistent link: https://www.econbiz.de/10011030572
discuss their advantages and limitations. By using both VaR and TVaR to compute the loading, we see that only the latter …
Persistent link: https://www.econbiz.de/10010899196
We solve different constrained mean-risk portfolio optimisation models using a recently developed simulated annealing-based multiobjective optimisation algorithm. We consider practical and widely used constraints in portfolio modelling, i.e., the cardinality constraint which imposes a limit on...
Persistent link: https://www.econbiz.de/10010691806
We analyze the performance of RiskMetrics, a widely used methodology for measuring market risk. Based on the assumption of normally distributed returns, the RiskMetrics model completely ignores the presence of fat tails in the distribution function, which is an important feature of financial...
Persistent link: https://www.econbiz.de/10011060326
We propose several connectedness measures built from pieces of variance decompositions, and we argue that they provide natural and insightful measures of connectedness among financial asset returns and volatilities. We also show that variance decompositions define weighted, directed networks, so...
Persistent link: https://www.econbiz.de/10009318187