Results 21 to 30 of about 138,460 (299)

The Effect of Left Tail Risk on Expected Excess Returns and Its Consequences on the Persistence of Left Tail Returns [PDF]

open access: yesتحقیقات مالی, 2020
Objective: Left-tailed risk illustrates the probability of unfavorable events that could occur in a range wider than three variances of the distribution function.
Mahshid Shahrzadi   +2 more
doaj   +1 more source

MULTIVARIATE HEAVY-TAILED MODELS FOR VALUE-AT-RISK ESTIMATION [PDF]

open access: yesInternational Journal of Theoretical and Applied Finance, 2011
For purposes of Value-at-Risk estimation, we consider several multivariate families of heavy-tailed distributions, which can be seen as multidimensional versions of Paretian stable and Student's t distributions allowing different marginals to have different indices of tail thickness.
Carlo Marinelli   +2 more
openaire   +4 more sources

Index tracking using Two-tail Mixed Conditional Value-at-risk in Tehran Stock Exchange [PDF]

open access: yesتحقیقات مالی, 2022
Objective: Passive management is an investing strategy that tracks a market value-weighted index or portfolio. It seeks to minimize the cost of investment fees and to avoid undesirable repercussions of the unpredictability of future trends.
Reza Eyvazloo   +2 more
doaj   +1 more source

On Optimization of Copula-Based Extended Tail Value-at-Risk and its Application in Energy Risk

open access: yesIEEE Access, 2021
In this paper, we study a novel risk measure, which is a copula-based extension of tail value-at-risk (TVaR). This measure is called dependent tail value-at-risk (DTVaR), which is a generalization of TVaR.
Bony Parulian Josaphat   +2 more
doaj   +1 more source

An Optimal Tail Selection in Risk Measurement

open access: yesRisks, 2021
The appropriate choice of a threshold level, which separates the tails of the probability distribution of a random variable from its middle part, is considered to be a very complex and challenging task.
Małgorzata Just, Krzysztof Echaust
doaj   +1 more source

Implications of Heavy-Tailed Loss Distributions for Reinsurance and Solvency Capital: Evidence from US and Egyptian Insurance Markets (2020-2023) [PDF]

open access: yesMaǧallaẗ Al-Buḥūṯ Al-Tiǧāriyyaẗ
This study aims to compare the performance of heavy-tailed probability distributions in modelingextreme insurance losses, with a focus on their implications for risk capital assessment and reinsurance pricing.
محمود فخرى محمد حماد
doaj   +1 more source

Modeling Contagion of Financial Markets: A GARCH-EVT Copula Approach

open access: yesEngineering Proceedings, 2023
To better assess the financial contagion through the VaR, several recent studies used copula models. In the same context, this paper addresses the inefficiency of the classical approach such as a normal distribution in modeling the tail risk, by using ...
Gueï Cyrille Okou, Amine Amar
doaj   +1 more source

Aggregate Risk Model and Risk Measure-Based Risk Allocation

open access: yesInPrime, 2020
In actuarial modeling, aggregate risk is known as more attractive rather than individual risk. It has, however, usual difficulty in finding (the exact form of) joint probability distribution.
Khreshna Syuhada
doaj   +1 more source

Value at Risk Estimation Using the GARCH-EVT Approach with Optimal Tail Selection

open access: yesMathematics, 2020
A conditional Extreme Value Theory (GARCH-EVT) approach is a two-stage hybrid method that combines a Generalized Autoregressive Conditional Heteroskedasticity (GARCH) filter with the Extreme Value Theory (EVT).
Krzysztof Echaust, Małgorzata Just
doaj   +1 more source

Tail Conditional Expectations Based on Kumaraswamy Dispersion Models

open access: yesMathematics, 2021
Recently, there seems to be an increasing amount of interest in the use of the tail conditional expectation (TCE) as a useful measure of risk associated with a production process, for example, in the measurement of risk associated with stock returns ...
Indranil Ghosh, Filipe J. Marques
doaj   +1 more source

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