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regardless of the size of potential losses. We allow for a range of confidence levels that depend on the loss magnitude. The key … ingredient is a benchmark loss distribution (BLD), i.e.~a function that associates to each potential loss a maximal acceptable … probability of occurrence. The corresponding risk measure, called Loss VaR (LVaR), determines the minimal capital injection that …
Persistent link: https://www.econbiz.de/10011900226
We consider the detection of multiple outliers in Exponential and Pareto samples -- as well as general samples that … block and sequential tests, are compared for their power and errors, in cases including no outliers, dispersed outliers (the … classical slippage alternative), and clustered outliers (a case seldom considered). We advocate a density mixture approach for …
Persistent link: https://www.econbiz.de/10011411972
significant transient dependence between returns and (ii) the presence of large outliers (dragon-kings) characterizing the extreme …
Persistent link: https://www.econbiz.de/10010412365
standard models as special cases. The loss distribution of a portfolio of contingent claims can be exactly and efficiently … the loss distribution and multi-name credit derivatives prices. An empirical exercise illustrates the flexibility of our …
Persistent link: https://www.econbiz.de/10011619282
To ensure that central counterparties (“CCPs”) are safe in all market conditions the European Union (EU) has adopted legislation, commonly known as the European Market Infrastructure Regulation (“EMIR”) that deals with their organisational requirements, including prudential requirements...
Persistent link: https://www.econbiz.de/10011296075
, we propose an intra-horizon analogue of the expected shortfall for general profit and loss processes and discuss its key …
Persistent link: https://www.econbiz.de/10012179511
Persistent link: https://www.econbiz.de/10011518800
The estimation of multivariate GARCH models remains a challenging task, even in modern computer environments. This manuscript shows how Independent Component Analysis can be used to estimate the Generalized Orthogonal GARCH model in a fraction of the time otherwise required. The proposed method...
Persistent link: https://www.econbiz.de/10003961455
A new model class for univariate asset returns is proposed which involves the use of mixtures of stable Paretian distributions, and readily lends itself to use in a multivariate context for portfolio selection. The model nests numerous ones currently in use, and is shown to outperform all its...
Persistent link: https://www.econbiz.de/10009313940
The class of mixed normal conditional heteroskedastic (MixN-GARCH) models, which couples a mixed normal distributional structure with GARCH-type dynamics, has been shown to offer a plausible decomposition of the contributions to volatility, as well as excellent out-of-sample forecasting...
Persistent link: https://www.econbiz.de/10009721353