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Keynes (1911) derived general forms of probability density functions for which the “most probable value” is given by the arithmetic mean, the geometric mean, the harmonic mean, or the median. His approach was based on indirect (i.e., posterior) distributions and used a constant prior...
Persistent link: https://www.econbiz.de/10003894722
We introduce a new 5-parameter family of distributions, the Asymmetric Exponential Power (AEP), able to cope with asymmetries and leptokurtosis and at the same time allowing for a continuous variation from non-normality to normality. We prove that the Maximum Likelihood (ML) estimates of the AEP...
Persistent link: https://www.econbiz.de/10003376118
portfolio theory, the Black-Scholes-Merton option pricing model or the RiskMetrics variance-covariance approach to VaR – rest …
Persistent link: https://www.econbiz.de/10008663369
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 flexible framework for the analysis of tail events is proposed. The framework contains tail moment measures that allow for Expected Shortfall (ES) estimation. Connecting the implied tail thickness of a family of distributions with the quantile and expectile estimation, a platform for risk...
Persistent link: https://www.econbiz.de/10011349502
the present paper we call such combinations ‘coupled risk measures' and develop a statistical inferential theory for them … when losses follow heavy-tailed distributions. Our theory implies – at a stroke – statistical inferential results for …
Persistent link: https://www.econbiz.de/10013124424
An elliptical copula model is a distribution function whose copula is that of an elliptical distribution. The tail dependence function in such a bivariate model has a parametric representation with two parameters: a tail parameter and a correlation parameter. The correlation parameter can be...
Persistent link: https://www.econbiz.de/10013159425
A flexible framework for the analysis of tail events is proposed. The framework contains tail moment measures that allow for Expected Shortfall (ES) estimation. Connecting the implied tail thickness of a family of distributions with the quantile and expectile estimation, a platform for risk...
Persistent link: https://www.econbiz.de/10012854818
successfully adopted to credibility theory in the actuarial literature. The objective of this work is to develop robust and …
Persistent link: https://www.econbiz.de/10013054067
This paper describes a general procedure for constructing a class of asymmetric distributions based on symmetric parametric distribution families, and investigates some inherent relationships between the constructed asymmetric distribution and the original symmetric ones. This procedure is used...
Persistent link: https://www.econbiz.de/10013055112