使用条件 evt 方法对马来西亚伊斯兰教法股票市场在科维德-19 大流行期间的变化进行评估

IF 0.7 Q4 BUSINESS
Nor Azliana, Aridi, Tan Siow Hooi, C. Cheong
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引用次数: 0

摘要

在当前的金融市场中,伊斯兰股票市场面临着在市场波动加剧和突发极端事件中维持和保持稳定的重大挑战。它可以通过消除传统系统的主要弱点来降低金融危机的强度和发生率。本文旨在通过介绍传统股市和伊斯兰股市的风险评估表现,找出最有效的风险评估方法,重点关注股市回报中的极端事件。数据分析分为两个时期:正常时期和 COVID-19 危机时期。在样本范围内进行的实证分析采用了条件极值理论(EVT)方法,该方法结合了 GARCH 和 EGARCH 模型的过滤序列。过滤后的序列将通过峰值超过阈值 (POT) 方法生成阈值。然后,该阈值将用于估计广义帕累托分布 (GPD) 分布,以预测未来一天的风险值 (VaR)。研究结果表明,与标准 GARCH 和 EGARCH 模型相比,在伊斯兰教法股票市场中,条件 EVT 模型在预测股票市场风险方面表现优异。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
THE VAR EVALUATION OF SHARIAH STOCK MARKET IN MALAYSIA DURING COVID-19 PANDEMIC BY USING CONDITIONAL EVT METHOD
In the current financial market, the Islamic stock market faced with a significant challenge to sustain and maintain its stability in intensified market volatility and unexpected extreme events. It can reduce the intensity and occurrence of financial crises by eliminating the primary vulnerabilities of the conventional system. This paper aims to identify the most effective method in risk evaluation by presenting the risk evaluation performance between conventional and Islamic stock market that focusing on extreme events in stock market returns. The data analysis is divided into two periods: normal and crisis COVID-19 periods. The empirical analysis, conducted within the sample employs the conditional extreme value theory (EVT) method that combine the filtered series of GARCH and EGARCH models. This filtered series will be used to generate the threshold by using the peak-over-threshold (POT) method. This threshold then will be used to estimate the generalized Pareto distribution (GPD) distribution to forecast the one-day ahead value-at-risk (VaR). The findings indicate that, in Shariah stock markets, the conditional EVT model demonstrates superior performance in forecasting stock market risk compared to the standard GARCH and EGARCH models.
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来源期刊
CiteScore
1.80
自引率
10.00%
发文量
72
期刊介绍: International Journal of Business and Society (IJBS) is an international scholarly journal devoted in publishing high-quality papers using multidisciplinary approaches with a strong emphasis on business, economics and finance. It is a triannual journal published in April, August and December and all articles submitted are in English. Our uniqueness focus on the impact of ever-changing world towards the society based on our niche area of research. IJBS follows a double-blind peer-review process, whereby authors do not know reviewers and vice versa. The journal intends to serve as an outlet with strong theoretical and empirical research and the papers submitted to IJBS should not have been published or be under consideration for publication elsewhere.
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