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基于人工神经网络(ANN)对新冠疫情对动态和新兴金融市场影响的估计。

Artificial neural network (ANN)-based estimation of the influence of COVID-19 pandemic on dynamic and emerging financial markets.

作者信息

Naveed Hafiz Muhammad, HongXing Yao, Memon Bilal Ahmed, Ali Shoaib, Alhussam Mohammed Ismail, Sohu Jan Muhammad

机构信息

School of Finance and Economics, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China.

School of Business and Economics, Westminster International University in Tashkent,Uzbekistan.

出版信息

Technol Forecast Soc Change. 2023 May;190:122470. doi: 10.1016/j.techfore.2023.122470. Epub 2023 Mar 2.

Abstract

The COVID-19 pandemic is a serious global issue destroying financial markets awfully. The proper estimation effect of COVID-19 pandemic on dynamic emerging financial markets is a big challenge due to a complex multidimensional data. However, the present study proposes a Deep Neural Network (DNN)-based multivariate regression approach with backpropagation algorithm and structural learning-based Bayesian network with constraint-based algorithm to investigate the influence of COVID-19 pandemic on the currency and derivatives markets of an emerging economy. The output shows that the COVID-19 pandemic has negatively influenced the financial markets as indicated by sharply depreciating currency value around 10 % to 12 % and reducing short-position of futures derivatives around 3 % to 5 % for currency risk hedging. The robustness estimation shows that there have probabilistic distributed between Traded Futures Derivatives Contracts (TFDC), Currency Exchange Rate (CER), and Daily Covid Cases (DCC) and Daily Covid Deaths (DCD). Moreover, the output represents that the futures derivatives market conditionally depends on the currency market volatility given percentage of COVID-19 pandemic. This study may help to policymakers of financial markets in decision-making to control CER volatility that may promote currency market stability to enhance currency market activities and boost confidence of foreign investors in extreme financial crisis circumstances.

摘要

新冠疫情是一个严重的全球问题,对金融市场造成了极其严重的破坏。由于数据复杂且多维度,准确估计新冠疫情对动态新兴金融市场的影响是一项巨大挑战。然而,本研究提出了一种基于深度神经网络(DNN)的多元回归方法,采用反向传播算法,以及基于结构学习的贝叶斯网络和基于约束的算法,以研究新冠疫情对一个新兴经济体的货币和衍生品市场的影响。结果表明,新冠疫情对金融市场产生了负面影响,货币价值急剧贬值约10%至12%,期货衍生品的空头头寸减少约3%至5%以进行货币风险对冲。稳健性估计表明,在交易期货衍生品合约(TFDC)、货币汇率(CER)、每日新冠病例(DCC)和每日新冠死亡病例(DCD)之间存在概率分布。此外,结果表明,在给定新冠疫情百分比的情况下,期货衍生品市场有条件地依赖于货币市场的波动性。本研究可能有助于金融市场的政策制定者在决策时控制CER波动性,这可能促进货币市场稳定,以加强货币市场活动,并在极端金融危机情况下增强外国投资者的信心。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/09a2/9977627/5b0e9ab8a0c3/gr1_lrg.jpg

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