Uncertainty, Search Engine Data, and Stock Market Returns During a Pandemic

In recent years, a series of uncertain events, including the spread of COVID-19, has affected the Chinese stock market. When people face uncertainty, they often turn to internet search engines to obtain more information to support their investment decisions. This paper uses the uncertainty index, in...

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Main Authors: Sheng Xu, Jing Zhang, Rui Shen
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-04-01
Series:Frontiers in Public Health
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpubh.2022.884324/full
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author Sheng Xu
Jing Zhang
Rui Shen
author_facet Sheng Xu
Jing Zhang
Rui Shen
author_sort Sheng Xu
collection DOAJ
description In recent years, a series of uncertain events, including the spread of COVID-19, has affected the Chinese stock market. When people face uncertainty, they often turn to internet search engines to obtain more information to support their investment decisions. This paper uses the uncertainty index, investor sentiment reflected by search engine data, and Chinese stock return data during the pandemic to examine the relationships among the three. Using daily data from March 2, 2020, to March 2, 2021, our empirical findings reveal that stock returns during a pandemic lead to an increase in investor retrieval of search engine data and that uncertainty affects stock returns during a pandemic. However, the reverse is not true. Therefore, in the face of an uncertainty such as market volatility caused by the spread of the pandemic, the active release of favorable information by regulators can help guide investor sentiment, prevent sharp stock market volatility, and improve the effectiveness of policy governance.
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spelling doaj.art-27b30364cbcc4a65af38b6a08da8249d2022-12-21T19:15:11ZengFrontiers Media S.A.Frontiers in Public Health2296-25652022-04-011010.3389/fpubh.2022.884324884324Uncertainty, Search Engine Data, and Stock Market Returns During a PandemicSheng Xu0Jing Zhang1Rui Shen2School of Economics, Zhejiang University of Technology, Hangzhou, ChinaSchool of Economics and Management, Southwest Jiaotong University, Chengdu, ChinaSchool of Economics, Zhejiang University of Technology, Hangzhou, ChinaIn recent years, a series of uncertain events, including the spread of COVID-19, has affected the Chinese stock market. When people face uncertainty, they often turn to internet search engines to obtain more information to support their investment decisions. This paper uses the uncertainty index, investor sentiment reflected by search engine data, and Chinese stock return data during the pandemic to examine the relationships among the three. Using daily data from March 2, 2020, to March 2, 2021, our empirical findings reveal that stock returns during a pandemic lead to an increase in investor retrieval of search engine data and that uncertainty affects stock returns during a pandemic. However, the reverse is not true. Therefore, in the face of an uncertainty such as market volatility caused by the spread of the pandemic, the active release of favorable information by regulators can help guide investor sentiment, prevent sharp stock market volatility, and improve the effectiveness of policy governance.https://www.frontiersin.org/articles/10.3389/fpubh.2022.884324/fullCOVID-19uncertaintysearch engine datastock returnspandemic
spellingShingle Sheng Xu
Jing Zhang
Rui Shen
Uncertainty, Search Engine Data, and Stock Market Returns During a Pandemic
Frontiers in Public Health
COVID-19
uncertainty
search engine data
stock returns
pandemic
title Uncertainty, Search Engine Data, and Stock Market Returns During a Pandemic
title_full Uncertainty, Search Engine Data, and Stock Market Returns During a Pandemic
title_fullStr Uncertainty, Search Engine Data, and Stock Market Returns During a Pandemic
title_full_unstemmed Uncertainty, Search Engine Data, and Stock Market Returns During a Pandemic
title_short Uncertainty, Search Engine Data, and Stock Market Returns During a Pandemic
title_sort uncertainty search engine data and stock market returns during a pandemic
topic COVID-19
uncertainty
search engine data
stock returns
pandemic
url https://www.frontiersin.org/articles/10.3389/fpubh.2022.884324/full
work_keys_str_mv AT shengxu uncertaintysearchenginedataandstockmarketreturnsduringapandemic
AT jingzhang uncertaintysearchenginedataandstockmarketreturnsduringapandemic
AT ruishen uncertaintysearchenginedataandstockmarketreturnsduringapandemic