Achieving economic sustainability: Operations research for risk analysis and optimization problems in the blockchain era

TM Choi - Annals of Operations Research, 2022 - Springer
In the digital era, achieving economic sustainability requires proper management of risk with
deployment of technologies. In this paper, we discuss how the popular blockchain …

[HTML][HTML] Google search trends and stock markets: sentiment, attention or uncertainty?

JJ Szczygielski, A Charteris, PR Bwanya… - International Review of …, 2024 - Elsevier
Keyword-based measures purporting to reflect investor sentiment, attention or uncertainty
have increasingly been used to model stock market behaviour. We investigate and shed …

[HTML][HTML] Do VaR exceptions have seasonality? An empirical study on Indian commodity spot prices

A Gupta, P Rajib - IIMB management review, 2018 - Elsevier
This paper compares three models namely RiskMetrics's EWMA, ARMA-GARCH and
APARCH with normal and Student's t-distribution. These models have been applied to spot …

Volatility modelling and parametric value-at-risk forecast accuracy: evidence from metal products

S Mabrouk - Asian Economic and Financial Review, 2017 - search.proquest.com
In this paper, we investigate the one-day-ahead VaR and ES accuracy of four metal daily
return series including Aluminium, Copper, Nickel and Zinc. Since, all sample presents …

Exchange Rate Risk and International Equity Portfolio Diversification: A South African Investor's Perspective

CRT Djemo, JWM Mwamba… - African Finance …, 2021 - journals.co.za
This paper examines the impact of foreign exchange rate risk on the expected return of a
South African based investor's portfolio. We use the GARCH based Value at Risk (VaR) to …

GARCH-class models estimations and value-at-risk analysis for exchange rate

S Mabrouk, C Aloui - International Journal of Monetary …, 2011 - inderscienceonline.com
In this paper, we focus on three daily exchange rate returns dynamics. Indeed, we have
assessed five GARCH-class models under three alternative distributions. Our findings …

Value-at-risk and expected shortfall estimations based on GARCH-type models: evidence from energy commodities

S Mabrouk - The Journal of Energy and Development, 2009 - JSTOR
Oil has become the principal source of energy for the majority of the world. But along with its
dominance, this commodity has experienced significant price volatility since the 1970s, and …

[PDF][PDF] Модели и методики многокритериальной портфельной оптимизации

ОА Синявская - Аудит и финансовый анализ, 2007 - ifel.ru
В данной статье сделан анализ моделей портфельной оптимизации, оценки
доходности и ликвидности ценных бумаг в условиях неопределённости. Предложена …

Comparative Analysis of Value-at-Risk in Market Risk Prediction in Banks Using GARCH Volatility

GC Alam, B Wibowo - Quantitative Economics and Management …, 2024 - qemsjournal.org
This study aims to compare the disclosure of Value at Risk (VaR) in market risk prediction
among banks in Indonesia. By employing comparative and analytical methods, this research …

Measuring the risk of shortfalls in air force capabilities

WE Woodward - 2004 - scholar.afit.edu
Abstract The US Air Force seeks to measure and prioritize risk as part of its Capabilities
Review and Risk Assessment (CRRA) process. The goal of the CRRA is to identify capability …