The Impact of COVID-19 on the Dependence of Chinese Stock Market

By calculating the mutual information of stock indexes of 10 primary industry sectors in China, this paper analyzes the dependence relationship among Chinese stock sectors during the COVID-19 and the dynamic evolution of the relationship by using the sliding window method. According to the actual si...

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Main Authors: Xianbo Wu, Xiaofeng Hui
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Discrete Dynamics in Nature and Society
Online Access:http://dx.doi.org/10.1155/2021/5588562
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author Xianbo Wu
Xiaofeng Hui
author_facet Xianbo Wu
Xiaofeng Hui
author_sort Xianbo Wu
collection DOAJ
description By calculating the mutual information of stock indexes of 10 primary industry sectors in China, this paper analyzes the dependence relationship among Chinese stock sectors during the COVID-19 and the dynamic evolution of the relationship by using the sliding window method. According to the actual situation of the development of COVID-19 in China, the samples were divided into three stages, namely, calm period, pandemic period, and post-pandemic period. The results show that the dependence relationship among Chinese stock sectors is significantly enhanced in the pandemic period, but it decreases in the post-pandemic period and the dependence structure is similar to that in the calm period. The industrials sector is most closely connected with other sectors in the pandemic period. The information technology sector and telecommunication services sector maintain strong dependence in the three periods and share little contact with other sectors. In the pandemic period, the dependence between the consumer staples sector and other sectors is significantly enhanced, and consumer staples sector and health care sector maintain a strong dependence. From the results of the sliding window, the Chinese stock market is sensitive to the impact of COVID-19, but the duration of the impact on the dependence among the stock sectors is not long.
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spelling doaj-art-ac52b83535f0476c830cd262008e61fd2025-02-03T01:21:27ZengWileyDiscrete Dynamics in Nature and Society1026-02261607-887X2021-01-01202110.1155/2021/55885625588562The Impact of COVID-19 on the Dependence of Chinese Stock MarketXianbo Wu0Xiaofeng Hui1School of Management, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Management, Harbin Institute of Technology, Harbin 150001, ChinaBy calculating the mutual information of stock indexes of 10 primary industry sectors in China, this paper analyzes the dependence relationship among Chinese stock sectors during the COVID-19 and the dynamic evolution of the relationship by using the sliding window method. According to the actual situation of the development of COVID-19 in China, the samples were divided into three stages, namely, calm period, pandemic period, and post-pandemic period. The results show that the dependence relationship among Chinese stock sectors is significantly enhanced in the pandemic period, but it decreases in the post-pandemic period and the dependence structure is similar to that in the calm period. The industrials sector is most closely connected with other sectors in the pandemic period. The information technology sector and telecommunication services sector maintain strong dependence in the three periods and share little contact with other sectors. In the pandemic period, the dependence between the consumer staples sector and other sectors is significantly enhanced, and consumer staples sector and health care sector maintain a strong dependence. From the results of the sliding window, the Chinese stock market is sensitive to the impact of COVID-19, but the duration of the impact on the dependence among the stock sectors is not long.http://dx.doi.org/10.1155/2021/5588562
spellingShingle Xianbo Wu
Xiaofeng Hui
The Impact of COVID-19 on the Dependence of Chinese Stock Market
Discrete Dynamics in Nature and Society
title The Impact of COVID-19 on the Dependence of Chinese Stock Market
title_full The Impact of COVID-19 on the Dependence of Chinese Stock Market
title_fullStr The Impact of COVID-19 on the Dependence of Chinese Stock Market
title_full_unstemmed The Impact of COVID-19 on the Dependence of Chinese Stock Market
title_short The Impact of COVID-19 on the Dependence of Chinese Stock Market
title_sort impact of covid 19 on the dependence of chinese stock market
url http://dx.doi.org/10.1155/2021/5588562
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