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Deep learning of value at risk through generative neural network models: The case of the Variational auto encoder [PDF]

open access: yesMethodsX, 2023
We present in this paper a method to compute, using generative neural networks, an estimator of the “Value at Risk” for a financial asset. The method uses a Variational Auto Encoder with an 'energy' (a.k.a. Radon-Sobolev) kernel.
Pierre Brugière, Gabriel Turinici
doaj   +2 more sources

Risk-Sensitive Safety Analysis Using Conditional Value-at-Risk [PDF]

open access: yesIEEE Transactions on Automatic Control, 2021
This article develops a safetyanalysis method for stochastic systems that is sensitive to the possibility and severity of rare harmful outcomes. We define risk-sensitive safe sets as sublevel sets of the solution to a nonstandard optimal control problem,
Margaret P. Chapman   +5 more
semanticscholar   +1 more source

Variation in Medicaid and commercial coverage of cell and gene therapies

open access: yesHealth Policy Open, 2023
Growth in the availability of cell and gene therapies (CGTs) promises significant innovation in the treatment of serious diseases, but the high cost and one-time administration of CGTs has also raised concern about strain on health plan budgets and ...
Molly T. Beinfeld   +4 more
doaj   +1 more source

Energy risk measurement and hedging analysis by nonparametric conditional value at risk model

open access: yesFrontiers in Energy Research, 2022
The accurate measurement and management of energy risk have become important issues of the economic development and energy security for all countries. The existing literature generally adopts the Value at Risk (VaR).
Ling Li, Guopeng Hu
doaj   +1 more source

Cyber Risk Quantification: Investigating the Role of Cyber Value at Risk

open access: yesRisks, 2021
The aim of this paper is to deepen the application of value at risk in the cyber domain, with particular attention to its potential role in security investment valuation. Cyber risk is a fundamental component of the overall risk faced by any organization.
Albina Orlando
doaj   +1 more source

Individual Investors’ Attention to Left Tail Risk [PDF]

open access: yesJournal of Asset Management and Financing, 2020
Objective: Left tail risk shows the probability of the occurrence of undesirable events. Investors who undergo the left tail risk are likely to experience considerable negative returns since the left tail risk oftentimes continues to the next period ...
Mahshid Shahrzadi, Daryoosh Forooghi
doaj   +1 more source

Does the COVID-19 pandemic matter for market risks across sectors in Vietnam?

open access: yesHeliyon, 2021
Vietnam has been considered one of the few countries that put the COVID-19 pandemic under control and successfully achieved solid economic growth in 2020. However, the national economy has been hit hard by the pandemic in 2021.
Chi Minh Ho   +3 more
doaj   +1 more source

On Partial Stochastic Comparisons Based on Tail Values at Risk

open access: yesMathematics, 2020
The tail value at risk at level p, with p ∈ ( 0 , 1 ) , is a risk measure that captures the tail risk of losses and asset return distributions beyond the p quantile. Given two distributions, it can be used to decide which is riskier.
Alfonso J. Bello   +3 more
doaj   +1 more source

Forecast combinations for value at risk and expected shortfall

open access: yesInternational Journal of Forecasting, 2020
Combining provides a pragmatic way of synthesising the information provided by individual forecasting methods. In the context of forecasting the mean, numerous studies have shown that combining often leads to improvements in accuracy.
James W. Taylor
semanticscholar   +1 more source

Dynamic semiparametric models for expected shortfall (and Value-at-Risk) [PDF]

open access: yesJournal of Econometrics, 2017
Expected Shortfall (ES) is the average return on a risky asset conditional on the return being below some quantile of its distribution, namely its Value-at-Risk (VaR).
Andrew J. Patton, J. Ziegel, Rui Chen
semanticscholar   +1 more source

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